It depends, on a fair few factors. Broadly speaking, if a signature edition offers a bass that I would otherwise want to buy, without a price bump just for the name, then sure.
Thus far, I just have Dingwall NG3s, as signature basses go, and I chose those Nolly Getgood signatures over the similar Combustion model because of the preamp and because I liked the color selection (and the matching headstocks were part of that), but I did have to make one compromise to my aesthetic preferences, because the NGs all have maple fretboards.
I did NOT get a Rob Van der Loo signature Dingwall D-Roc, in spite of liking the idea of the built in distortion circuit, because I’m just not into the Hellboy comics, which are splashed all over the paint job. I AM tempted by his new signature version of the D-Roc custom, because it still has the same electronics AND that top contour with the metallic paint looks VERY sexy.
The John Taylor signature Dingwall is tempting, the Neve preamp is intriguing and I don’t have a problem with the aesthetics of the bass. Maybe one of these days.
Now, the Jacob Umansky signature that was just officially announced, THAT one checks almost all of the boxes for being a bass that is right up my alley. I’m not normally a white or white-predominant bass fan, but the ceruse is sexy as hell, and the bass looks super-elegant, like it’s been dressed in a tuxedo. The electronics and pickups I already know I love, they’re the same as my Z3 has, the described neck profile and the wenge fretboard are perfect, the body shaping and contouring are also very much like my beloved Z3, I just don’t see any reason I wouldn’t want it, and want it a lot.
Apart from Dingwall, the Ibanez Steve DiGiorgio is very appealing, I love the color, love the BTBs I already have, and it looks like a damn nice fretless, and the only gripe I have is that I wish they had a six-string version.
About the only bass I can think of that the name DOES matter is any or all of the Steve Harris basses. What can I say, I’m an old school Iron Maiden fan, going back to the first CD I ever bought, the Somewhere in Time album, when I was in high school in the 80s.