Always wanted to own a Rickenbacker until I played one. Now, definitely not something I want to own. The body and neck are seemingly designed to be the opposite of what I find comfortable.
Yamaha - sorry, they look horrible. The pickups are the key horror and the headstock - which I would be able to forgive otherwise - completes the nightmare. I've never played one and I never shall.
Fender Tele basses...look ghastly.
Anything which looks wider than my hand, such as the 11-string monstrosity posted above. No animosity to anyone who would want to play it, though. Creativity strikes us all in different ways and, if he can play it, well done to him.
Headless basses, single cuts, basses with LEDs on the fingerboard - thanks, but no thanks.
Once, I never wanted a Jazz or a Precision. Now I have a (Warmoth) Jazz and it is great. When Warmoth sort themselves out and offer a proper 5-string P, I'll get one. Nice.
Once, I never wanted anything with more than four strings. Now I wouldn't want anything with fewer than five, although I think that 6 is my limit (but suspect 5 is my actual limit).