Question a/b $20/180 S&G on PS

[R2004]

This may sound like a bad beat story, but it is a strategy question. About 61 left my stack is 3640 blinds are 100/200 and I am co with two red aces. Folds to mp + 1 w/ 4600 in chips, he raise to 527, I call trying to trap, this guy has played poorly and has gotten lucky a lot. Folds to BB who pushes all in for 2890 more mp +1 calls I raise for 750 more and am all in & mp+1 calls. BB has AJ off, MP+1 has 5c,6c. MP+1 makeas a straight on the turn. My question is this, have any of you seen this kind of poor play this deep in the 180? This was my first one and I will play many more, should I expect this kind of bad play from some of my opponents this deep in general and adjust my play accordingly? I figrued all the riff raff would be out at this point?