LOL how does the deal suck? Cause it doesn't make 7000% per year? Man people have been spoiled

And, as mentioned, SatoshiDice volumes have GROWN while BTC appreciated against the dollar, meaning when the BTC was 2x as valuable as prior, the site had grown nominally in BTC, thus the actual growth of the site has been tremendous. Dividends are paid in BTC, so the extent to which BTC rallies against dollars is not as important as you're making it out to be.
Come on Erik: realistically speaking if BTC goes up 10 times, people are going to be willing to gamble less, let's be generous and say 25% as much in BTC space, or 2.5 times more in fiat space. However I look at it I can only see downside to your BTC volume and profitability.
But good luck to you, it'll be interesting to see how much you can rope in and at what price.