If you have a pocket pair, make your set on the flop, then your quad on the turn, you're in great shape. You should have, by this time, gradually built the pot with meaningful bets, gotten your opponents a bit pot-committed, and are ready to drop the hammer on them. However, when you simply happen to get lucky and you're holding the 4th card in the hole with the other 3 out on the board, you're pretty well screwed on getting it to pay for you. All you can hope for, really, is that someone made their boat and is reckless enough to disregard the threat of quads. Count me among those who usually doesn't get as much out of quads as we'd like.