It all depends on two factors:
How long people rebill for and how many people actually rebill.
What I mean is, people who rebill the first time will very likely stay atleast 3-4 months. Other members who paid once, might not rebill at all.
Taking this into consideration, let's say 50% of your signups don't rebill at all and 30% rebills 2 months, 20% rebills 3 months and 15% rebills 4 months. Let's also assume you earn 50% revshare and membership is 24.95/mth
If you sent 100 paid signups in month 1, but then stopped traffic completely, you'd see:
Month 1: 100 x 24.95 x 0.5 = $1247.50
Month 2: 50 x 24.95 x 0.5 = $623.75
Month 3: 20 x 24.95 x 0.5 = $249.50
Month 4: 15 x 24.95 x 0.5 = $187.13
Total: $2307.88
Thus if a site's retention was the above, you would do much better at $25-40 per signup than with Revshare.
If the site had say 75% members who rebilled once and more % rebilling longer, Revshare becomes more profitable.
The key to Revshare though, is to send atleast the same amount of traffic/joins per month, so your monthly income increases
I guess the only real way to know retention rates is to try though, unless a program will share the info with you......hey, if you want to know IwantU's ret. rates, just ask me
