I've been playing poker in casinos for something like five years now, and in that time, I've played in casinos at least 73 times (my recordkeeping starts in October 2005).
Every casino I've played in pays out a bonus for hitting four of a kind. Every casino, that is, except the classic Vegas ones (Bellagio and Binions) and the Tampa Hard Rock. And the last time I hit quads? May of 2005 at the Tampa Hard Rock (quad queens).
Tonight I'm at a table in Yakima, at the Caribbean Casino, and I'm down about $60 after losing a pot holding QJ when the board comes 2QJ/Q/K. The other guy had pocket kings, and my full house loses to his full house. I've been doing better at avoiding tilt, though, and soon I get two black aces.
I flop an ace, raise, get some callers, and turn the final ace. I check through the river, because if I don't make it to a showdown, no jackpot.
I got $116 for the quad aces, and another $25 for the high hand of the hour. And then I hit another two full houses over the next 30 minutes, leaving +$247.
Yeah, this trip paid for itself nicely.