After playing for some time now, I think about 60-70% goes into the pot or so, with a little bit more for the progressives. At least, that's my payout so far... Not so good.
On the bright side, I think PartyBingo can be at least a break even bet for the smart gambler. Here's how:
Always buy bulk, 200 or more cards at a time. You get a 20% bonus for 200 or more cards of a single denomination. That's a pretty good bonus.
If you only play very late at night/early morning US time, you can get minimum pots, but with very few players. That seems like it could be a close to break-even bet by itself.
Always only play 3 cards, the minimum. Buying twice the cards gives you LESS than twice the chance to win the pot, at twice the cost.
Always play the chat games. These are where one out of two bingo games on average, the chat host will award 5x the price of a card to one player usually. It's free money if you're playing bingo cards, so you mine as well take it.
Of course, don't play slots, or any of the other games.
That said, I think the bonus isn't worth hunting. It's a 200% 10x(D+B) bonus, with 500 extra free cards. Deposit the MINIMUM ($25) you can for the bonus, since you only have 2 months to clear it, and the break-even method above is very time intensive. This will get you the 500 extra cards ($35+ value by my calculations). Triple table (5, 10, 25 cent), play though in 2 months, and pick up the bonus. Not really worth it, though, unless you have fun w/ bingo. That's ALOT of play at 3 cards per game.
The site is kind of scary, with a few people whining about how much money they're losing. When you can play 100 cards at 25 cents each per game, I can see why. Most of the people are nice, though.
