PokerRoom 10+1. Smart Play or Donkey Play

[jstoc]

To me it seems like a smart play. Firstly, let's assume that at least 60% of the time the SB is going to raise all in, which seems reasonable enough, to account for the times where he has absolutely trash. Then if the Hero or Button or thinking players, they can simply limp in with marginal hands, knowing that it's going to be raise regardless, and perhaps grab an extra BB in the process.

Now in this case I would have no problem limping with a very strong hand if I was the hero, because I'm pretty sure that the SB is going to push, and if the Button calls that push, I'm gaining more chips then I would have probably if I had simply raised myself. Now ignoring that, I think given the situation the push is still a good play, even if he is 50/50 with the button he only has to call 400 more, meaning he is getting over 6-1 on his money. Also for the button to call, he would have to commit at over his half his stack.

What thinking is going to commit over half his stack on a marginal hand in this situation? There seems to be little reason to do so, unless he really likes gambling. So, in essence the only thing that makes this a bad play is if you observed the button limping in with strong hands, in particular on the button, but also in general. If there hasn't been a history of this in past, I considered it to be a +EV play.