This is a controversial subject for sure. In my view, as a longtime repairman/ Luthier, EVERYONE seems to be building their versions of Fender Jazz basses now. One of the main reasons- is it's a great design. Leo Fender- really was the Henry Ford of the guitar world. So- does every carmaker make Fords? Nope- but go back to the 20's- 30's, and it's pretty obvious everyone was indeed making copies, or cars heavily influenced by Ford. To me, we're all essentially making Fender basses. Even though many instruments look nothing like a Fender, all makers are at least considering Fender designs in some way. So, do I think paying 5-6K for a Sadowsky is something I would do? No, because I bought two Sire V-7's last year, and do not want for anything with either. I don't spend time building Fender basses, and the Sires are great basses for the money. I've played and worked on many very pricey jazz basses. Do I see a quality difference? Sometimes, it's apparent, other times, it's a bit of a mystery. The recent Fender basses I've seen, played and worked on, are excellent instruments. Many are featuring the 'improvements' many Luthiers incorporated into their fender clones, to fix the issues we all knew about. I think, if you want a Sadowsky, a Lakland, Lull, Suhr, Valenti, Sandberg, or even a G&L J-bass- and you have the money, by all means, have at it. Life is short. Enjoy it all!