The idea as a concept is good, and perhaps competition in the market will help drive some of these fees and monthly maintenance fees down - which I'll agree are outrageous.
That said, if you're a high stakes player looking for an easier and faster method of getting your money in and out, the fees might actually look fairly appealing. I mean, if you're playing for thousands upon thousands of dollars each month, what's a few extra bucks here or there for the convenience of it and nothing would be worse than having thousands wrapped up in a site that takes forever or never pays out.