Agree, paying someone to increase your gamer score is very sad.
I've played a couple of easy 1000 point games but that's because I've either borrowed the game from a mate before he's ebayed it (Madden - which I actually quite enjoyed playing, considering I've never even looked at American Football before), bought extremely cheaply (King Kong £10 - thought I'd have a look as reviews were fairly mixed) or bought by my brother (TMNT - he does like his turle games, he's been nagging me to get the old arcade game on XBLA).
I'll proberbly look at the Avatar game at some point (either rent or when it hits <£20) as I can just see my nephew nagging me to get it 'cos he loves the cartoon (and I've watched most of tHEM with him).