I actually have more emotional attachment to my amps than basses for the most part:
I drove (Literally) 6000km for my 60's Rickenbacker 30" Cabinets, and quite possibly the only B115 Head ever produced:
I drove (Literally) 3000km for my 1972 Hiwatt DR405- I also had to sell a 60's Gibson, 60's Fender, Les Paul Custom, 3 bass cabinets, 60's Silvertone, amongst other things to make it happen. NO regrets. I haven't even thought about that gear I sold... and I dream about turning this Hiwatt on almost every day.
For Basses... I'm pretty partial to my '66 Ampeg AEB-1. It's almost useless to play in a band, but it's 100% original, plays great, and turns a lot of heads. I'll always own great sounding, practical basses- this one is neither of those, but I love it nonetheless.
My '73 Ric is the most solid Ric I've ever played- REALLY strong pickups, sounds like a grand piano- a dream to record with and I can put anything from 40-95's to 55-110's on it and the neck will NOT move. Action ON the frets with no buzzing- an absolutely perfect instrument through and through. Even though I've got other rics that are more rare, more expensive, and cooler- this one is simply very special, and I know I won't ever get it back if I let it go.
And my '65 Jazz is the best sounding Jazz I've ever heard, Ever. ...ever. It's currently my main player (I've only had it 8 months or so) and I have a tough time playing my other 12 basses.
My Carl Thompson 6 will follow me to the grave when I receive it.... every aspect of that bass is exactly what I want in an instrument- it will be my first custom instrument, and my first bass over $10,000. Though I'm inspired by every instrument I own- this will be the first instrument that I can honestly say will play to me more than I will play to it. I hope that makes sense to some of you- I've played ALOT of basses over the past 6 years of selling MI and playing professionally- and though they're all great, I'm excited to have an instrument that I get to truly decide it's personality.