Opps…
Professor, I voted wrong and skewed the results. I voted on $5k per month or more but accidently factored in non-casino programs. My casino spend is in between $1K and under $5k.
Regarding the ROI aspects, I guess this is over a pre-determined period of time. I like to see a break even point within one month or two months, of player sign-up. Then the ROI will ideally increase each month since the player may continue to spend and earn money on your initial acquisition costs.
I figure a break even in the short-term is well worth it on net revenue deals. For CPA, I want to see at least 40% return and within one month.