Why is the 360, the console of choice for beta testing?

[AlkamistStar]

The OP confussed me at first, but i think kiefer23's post.

As for the PS3 owners getting additional content for game released later...it's only fair really, seeing as the games are relased later...what more is there to say...

I'd be pissed if a game for my console of choice was released 1 year later with NO additional content.