I'm not a PC user, i know people who are feel like they are being ripped off but i think deep inside much of us would like to have that problem

To the point: I'm currently on a 6.5% commission rate geography and i just calculated my monthly effective commission rate, this is, all the commission a paid in a month (real commission, not implied) divided by my net profit. I discovered that i currently pay around 25%.
So for every 1K in net profit i make i give Betfair 0.25K. I think they should start inviting me to some free dinners or send me some vouchers for a spa.
The question is, how much do you really pay?
regards