I think that we'd be lucky if there are a handful of forum members who actually have found the one and will still have it in a year or maybe even less.
There have been threads in the past that many members including yours truly have posted in stating that we've found "the one". If you can find the threads I can almost guarantee that most of them are sold.
For me it's just a tool, plus I like shiny, I want to like certain basses so may have had 10 of them over the past 28 years just to be sure, I've bought some because my favourite player at the time has used one, it looks nice, and so on.
I've had 9 4-string Stingrays and am on SR5 number 5 for example.
I will never find the one and the closer I think I get, the more I don't actually know what I want and what I have is good enough for what I want it to be able to do.