This. I've been doing this for about a year, and finally went to C2E2 to see all the Big Boy dealers and art there. I eventually bought a piece, but I did get the impression that the art dealers were almost like car salesman in some respects. They are not like your friendly neighborhood comic shop owner, who wants to talk comics and stuff. They are more interested in pumping up a piece and selling it to you. I get that this is how they make their living, but it was a bit offputting. I guess if you establish a longer term relationship with them as a reliable buyer, they may change their attitude. But, its hard for newbies.