I'd always had a thing for Ric's, but never owned one until after about 25 years of playing, where I'd had P-copies, J-copies, numerous MIJ and MIK basses, even a couple of StingRay's. One of the best sounding basses was a Westone Thunder 1A, and an MIM Jazz.
Had the cash and the chance of a 4003, and that was that. Had to sell it, but always hankered after another (though the Rickenfaker was a close second). Managed to pick one up for a good price a few years back, and that really was that.
Still GAS-ing for other things, a Thunderbird, Ripper/Grabber, Victory Custom (passive Artist), Dingwall D-Roc, etc. There are/will be others, but the 4003 feels like "home".