I don't know, but if they offers less than you that's even more of a rip off. If a casino saw someone that bet $5,000 within a month, let alone $50,000. You'd be receiving free rooms and everything. $25 for $5000 spent is a rip off. Then resetting your points at the end of every month makes it not even worth it. You should just remove your VIP program. If someone is betting $5000 a month they'd probably be giving tips for $25. You should probably find some other way to reward bettors. The two option that this rewards program is going to get people A) pissed off that they've lost a lot of money and receive $25 because it's basically nothing or B) chump change for people who are betting $5,000 a month. I'd rather have a free dice roll for a large jackpot or something than $25 for betting $5,000 in a month.
I disagree with you, please allow me to explain it through an example.
Suppose that you bet 100 BTC during the month on our Direct Dice.
Our expected gross profit from your bets is 0.99 BTC. It's actually less because of the Jackpot, but to make it simple lets ignore the Jackpot.
Now you get back 0.8 BTC through our VIP Rewards Program. Essentially, we're giving you back most of our expected profit, and if you bet more you will actually be getting all of it back.
Now lets say as in your example that you only bet $5,000 during the month and reach just the first VIP reward milestone.
So you bet $5,000 during the month, out of which our expected gross profit is $50 and we're giving you $25 back.
$25 may not seem much to you, but that's because our profit margin is very small to begin with, and it's even smaller once you factor in the Jackpot.
We're operating under a much smaller profit margin than the typical casino you're referring to above.