Mine hasn't changed in 5 or 6 years and I'm struggling to remember some but I do remember taking full advantage of the pre recession exchange rate when the US dollar was worth 50p and international shipping was half the cost.
Sierra Precision - hated the ply body.
Westone Spectrum II - hated the ply body.
Jaydee Supernatural Mark King (which was my only bass for 12 years) - great bass, only sold it because I got an offer too good to refuse. Still hanker after a Jaydee some days.
Jaydee Custom jazz - I assembled the parts and gave them to John to make a body from. Unfortunately the Moses graphite jazz neck flopped about too much.
Warwick Streamer Rock Bass - surprisingly great bass. Pine body.
Status Groove 5 string - also great bass. Very growly.
Ken Smith BSR5GN - my first halo instrument, loved it although perhaps not the best for stage work as it was a bit mid scoopy.
Pedulla Pentabuzz - a keeper, loads of mwah. The best wooden neck I've ever played - action is ridiculously low.
Modulus Sonic Hammer - I sometimes miss this bass. It was really playable but it was highly aggressive sounding too. Growly though.
Ken Smith BSR6GN - I wanted to channel John Patitucci. I failed. I could have rented the fingerboard out to Heathrow as a third runway.
Ken Smith BSR5GN fretless - because I wanted a twin for the fretted. Sold to Randy Hope Taylor who promptly had Martin Petersen slap frets on it.
Musicman Stingray (78) - had a mutilated Warwick Thumb shaped body with some goddawful sexist sci fi fantasy art airbrushed on the front. I managed to find a road rashed replacement body from the same year and I still have it.
Musicman Stingray (status neck) - probably my only real example of sellers regret. Not quite as growly as the Modulus, not quite as warm as a Cutlass but a practical alternative to either.
Alembic Series 1 (graphite) - still have it. Bought from the bass player in legendary Canadian band Spirit of the West.
Musicman Cutlass 1 - neck like a banana, sold it eventually after talking to Rob Green.
Alembic Elan 6 - heaviest bass I've ever owned, very dark sounding also.
Modulus Quantum 5 Sweetspot - really brittle sounding, maybe because the neck was too rigid.
Modulus Quantum 5 Sweetspot fretless - neck like a banana, had Rob Green plane it and I sold it on. Bartolini pickup was a great match though.
Pedulla MVP5 - as a twin for the Pentabuzz, but the sound wasn't quite right for live work.
Celinder J Update (the Skarbee bass) - nice but a tad aggressive sounding compared to my fave Celinders. It was on a recording though.
Celinder J Update (96) - early model, warmer than the Skarbee but had a weird Les Paul pot arrangement. Came from a danish session player. Sold to thin the herd ahead of emigrating.
Celinder P Classic - great bass but I just didn't use it apart from in a demo vid for my band at the time.
Musicman Cutlass I - bought from the US, ex Cliff Williams. Neck like a banana.
Musicman Cutlass II - bought off Ebay for a steal. Neck like a banana.
Spector Euro 6 - ex-Sound Control bargain, I used it on stage for a year to force myself to get used to 6 strings in anticipation of the Shuker arriving but gave up eventually.
Shuker Headless 6 - great bass, superb workmanship, but @Dood's headless 6-er is more my thing. Don't you just hate it when that happens? Still have it.
Spector NS5CR (tobacco sunburst) - lovely sounding bass, really thick neck which I liked. Only sold it as I needed to thin the herd down.
Spector NS5CR (natural) - still own it, a bit of a BC ho bass. Neck needs some attention (one day) but sounds growly just like the Smiths but with more midrange and therefore much better for stage work.
Steinberger XL25A - a surprisingly fantastic sounding bass - really warm and deep. But I couldn't get on with the 13mm string spacing or the ergonomics. If only they'd made a through neck full body model...
Pangborn Warlord (graphite neck) - still have it, is being restored currently
Fender Jazz (1978) - it was pretty average...boring even. But it looked nice next to my preEB Stingray from the same year.
Status Series 1 (graphite thru neck) - still own it, I like it more every year. Very playable, very well made. Sometimes it can sound like my Alembic Series 1. Really want to change the electronics to control the mids and low end. Dual band comp on it sounds great and tames the highs in a way that the eq doesn't.
Self build headless 5 string with graphite neck - ergonomically flawed body designed by myself, but it sounds really good. If I could, I'd remake the body and probably add an extra soapbar closer to the neck.
Chinese made 5 string - the atrocity that shall not be named, out of respect for the trees that died for it.
GAS list: Vigier Passion V string (so long as the neck is straight), Hagstrom Super Swede for those Rutger Gunnarsson moments, early 90's Status Series II 5 string for those Britpop moments, Celinder J Update 5 string (in blue w/ birdseye maple neck), 1982 Gibson Ripper, Industrial Radio Pro 5