[pergesu]

Oh absolutely, but if we raise the flop to 175 and he calls, now the pot is 360. If he checks the turn, we bet 200 or so? That's 375 invested.

But if you just call, he may check the turn in which case you can bet 80, or he'll lead 80 and you can pop it to 200, for an investment of either 130 or 255.

edit: Notice that if you just call on the flop, the maximum amount of chips you'll put in is only 80 more than the minimum you'd put in by raising the flop.