I'm a bit worried with the signature campaign. I have read in the September thread that the site spent about 12BTC that way last month (https://bitcointalk.org/index.php?topic=758854.msg8625679#msg8625679). So, with a 0.1% edge for the casino (10% of the 1% edge), just to compensate that expense, 12 000 BTC have to be wagered per month. I wonder how much dicebitcoin expects to be wagered on the casino, but I think he's spending too much in that promotion.