House edge is normal for gambling sites and would you please show us that 'feeling nice' design of your website. And I'm pretty sure that people and would always want to consider investing in casino's bankroll.
But how many of you would actually consider investing into the house pot?
There's no distinct and exact number on how many wants to invest into this type of investment but I'm sure many are interested.
And what could I offer to the people to gain their trust? I guess many are afraid to invest since often people simply run off - or not?
Gaining the trust from people it depending on how you are running your site, paying on time, answering queries, just go it on a normal type of customer service.