Yeah, that's Ibanez PGM301 Paul Gilbert singature in my avatar. It costed me ~1000USD in 2008 and lot of blood, tears and desperation since that time. I looks gorgeous, I was astonished by Paul's playing, I even learnt to play 2 songs (but without solos), but never came any further, and not sure if ever will.
However PGM301 stays with me, even if I just looked at it ? because I'm playing strat right now.
My take on singatures was that you don't have to be B.B.King, or Jimi Hendrix. Of course it's up to company's marketing strategy. But what if Mercedes came out with C180 Adele Edition? ? I'm sure AMG owners would feel weird ?