I have never bought any signature model guitars.
I have bought the same color and vintage as a artist though....
I have a 1980 Les Paul Custom Silverburst,because Adam Jones
from Tool uses one.
I guess this would be true ,also for my 1985 Black Schecter Mercury Strat.
Andy Taylor played one,while in the group The Power Station.
I wanted that guitar when I was a kid,but my mom wouldn't pay $800 -$1000
for a guitar back then.
I had to wait 29 years,but finally got one..
If PRS ever released a Pete Loeffler Artist model,I would purchase one of them.