I think the most important thing is the caveat AOK puts on the type of tables you play this at. Limping KJo UTG works if there's not going to be a raise preflop and J8 limps and will call you on a J53r board.

The big problem is that $10NL are the only tables this happens at. At $25NL there just aren't enough loose/passive calling stations to make it profitable. At PokerRoom anyway. I'm playing a bit of $10NL now, and it's much easier to play your top pair OOP with 4 in the hand than at $25NL, where it's an unhappy situation to be in.

Maybe last year things were different, and you could find these sorts of tables at $50NL or whatever, but not now.