It may come as no surprise that I completely disagree with just about everything Vinyl said!
I think the sponsors are already getting enough out of the players.
One of their main interests (according to Simmo) is to get new sign-ups.
I myself joined Challenge casino as a result. I deposited $100 for a 100% bonus, but with a WR of B x 40 I have almost zero chance of completing WR. That's $100 they've had that they otherwise would not have.
Even if I had already been a member there, in wagering $400 on Crapville I lost $100 anyway!
If the WR increases I personally will not take part in the comps. I have already decided I will not attempt the Bejeweled one as I think $700 is a crazy WR for that slot.
Even if you are a member at the casino, you have to deposit $50 and the chances are you will lose this amount meeting the WR regardless of whether it's at 1c or 25c per line. I think a $50 'entrance fee' is more than enough for a competition with a $250 top prize.
$50 might not be much to you, Vinyl & Simmo, but to a lot of people (including me) it is a significant sum.
The real key to making this venture a success is getting lots of people to take part. So far I'm very surprised at the list of people who have
NOT signed up. Where are the regular 'Winner Screenshot' posters; Slotchik, JonhSteed, RobWin, tim5ny, CasinoMeister!, caliban, schnozzy, polli123 (!), wayram, umberto... to name just 10?
I do see the list of entrants is now increasing, so maybe it's just going to take a little time to get going.
Another factor, as mentioned in my previous post, is I strongly feel there should be a limit of one prize per player per slot. That would limit any high rollers to a maximum of 10 payouts. If you allow multiple prizes per game one person could potentially walk away with 30 prizes (totalling $4,000!) leaving the rest of us with just scraps.