Bonus whoring at Casinos

[KissDeezNuts]

Everyone always talks about how great the bonuses are at the poker sites and should be taken advantage, which makes sense. But what about the online casinos that offer real nice bonuses that are 100% and 200% up to around a 1000 bucks. It seems like a great idea to play basic strategy at the black jack tables, which is something like 99.5% cash back, waging a dollar a hand and then just run with the money once the bonus clears and move onto the next casino. Has anyone done this before and is it actually a great idea?