Collector dedicated sites

Does anyone know of a good site with active traffic, that is geared more toward Collectors? BTW: I love TattooNow, and I check it everyday to follow my favorite artists work (and sometimes discover new artists). it's a tremendous site and mad props to Gabe for putting it together.

I am not exactly sure how this site is not perfect for collectors. What would you have a collector's site display? This site shows the artist's work with links to where they are located, news items (Nov. 5th post for Monsters Ink !!) for specials or when they travel and how to contact the artist. If there is something more a collector could need I'm sure Gabe would be pleased to get your input. I am seriously curious what this site is lacking not being a douche :) MJF

I guess what im looking for is a more active forum. But you're right, this site is the bees knees for most everything else.