Shutting down investments was stupid as hell. The only benefit to using your site if there is a variable edge is if the bankroll is enough to which you can bet up to / to win 20 BTC per roll and have an edge of 1% or less. The current leader is PrimeDice which offers 1% house edge fixed and offers ability to win up to 20 BTC per roll. Thus, the variable edge doesn't matter with your site unless you build a big enough bankroll because anyone who wants to bet a lot is simply going to go a more trusted site that offers higher payouts.

Dumb, dumb, dumb move on your part.