So I found your standard red VT at Petco, and he definitely had attitude! I found him flaring at his neighbor, even though he's only 2 or 3 inches at the most, and his cup had a bubble nest. When I picked him up, he seemed happy to see me, and when I put him down he was NOT happy, then continued to flare at his neighbor again. I knew he wanted to come home with me at that point. :P
I haven't named him yet, and I guess I'm sort of hesitant after Claude. I don't really have any good pictures of him yet, but I was able to feed him a couple pellets (one of which he spit up soon after, but I was proud of him), and I played a game with him (basically chasing his reflection around in a mirror). I even think I see a bubble nest in the back of his tank. :)
So yeah, a standard red VT, paid $4, but I'm hoping for the best. He's pretty spunky, but I can't find a name that suits him. I'll post pictures once I get some good ones.