Well, back to the question; what you are missing out on is the best production bass money can buy.
All of this baloney about them being difficult to intonate, hard to do palm-muting, and so-on - who cares? Just play the darned thing!
Me, I've had 8 Rics in my life and I've only ever sold one. My second bass (after a Columbus Jazz copy) was a Ric; I've still got it.
I like the quirkiness, but even more I like the sounds and the playability.
As for the replacement parts: I've had Badass II, Hipshot, Kahler whammy, Schaller 3D bridges on Rics and I'll go for the stock unit any day; I may convert my pair of 2010 4003 to the new v3 assembly at some point, just for the heck of it. I don't "get" the Babicz bridge; I did mention that on one forum or FB group and got told I'm not worthy or something.
Pickups-wise, I did have an issue with the single-coil playing the clubs, so I put a Seymour Duncan on one; however, I've now reverted it to the original.
I like the clank of a Ric with roundwounds; I played one a few weeks back with flats on it and it was dead as a dodo (did a great Macca sound though).