folded to you, u are on the button

Sklansky argues that with suited connectors and gappers (i.e. J9s, Q10s, 10 8s) it is better to have a smaller pot on the flop so there are smaller bets on the flop, when you are mostly drawing if you hit a draw, and bigger turn and river bets, when you know if u've made it.
He also argues that by raising, most of the time u'll just win the blinds whereas if u limp, with some profitable hands, u can play pots in position with them, possibly generating higher EV by winning bigger pots.

Of course, only applicable to deepstack nl poker.