Its all about preferences, not all people like to play on a non provably fair casino. Most bitcoin gamblers prefers to play on any sites with clear provably fair mechanism so they wont be afraid of being cheated. Not mentioning that this site is going to cheat us, but just saying it in general context.
I difinitely agree with panjul07, gamblers don't want to get cheated and also gamblers want to experience smooth access, less problem from the site when they want to play and also the transaction of withdrawing or depositing bitcoin.a Start with your reply as an example.
The roullete doent load on my browser tho , i dont know why.