You need to bet 1/3 pot here because if a broadway card falls kj, q10, etc may stack you.

Now if the flop is A 5 9 I definitely check...but people limp with broadway cards and WTF are you going to do if you see a 10 or K show up on turn and you are getting re-raised?

sometimes you nail your hand and take a small pot, it sucks. Everyone probably folds to you, but you have strong ROI here -- there are more outs that will make your hand hard to play than outs that give one villain a set