I guess our boys are eligible.
Bogart is 14 lbs at 2 yrs old, and Jackson is already 5 lbs at 15 wks old.
Of course Bogart is a cheater because he's half yorkie-half silky terrier.
I think larger yorkies have more positive advantages than the little ones do. I can't put Bogart in my pocket, but he can jump onto my truck seat in a single bound. He's not so large that he can't sit on my lap, and not so small that someone couldn't see him and squash him when they sit down. (No offense to teacup owners, all yorkies rock, but I'm of course biased
)