The rates are probably ok, I only feel there should be no such difference between promoter and investor upgrade.
direct and rented refs earnings should be the same.. besides it's not good to call your site an investing one as it is
basically an advertising site. Now if someone decides to use the site as an investment one then it's his own
responsibility. You may also like to state that in your FAQ or T.o.S. page like Nerdbux does..
I'm not sure if the script supports it but you could offer commissions from referral purchases to the Promoter upgrade.
However there could be an advertiser upgrade offering a discount etc. 25% bonus on all non-incentive advertising
such as banners and announcements (plus grid and text advertising if you decide to upgrade the script later on).
I vote positive for these upgrades :
Clicker : $1/Month - $10/Year
Promoter : $3/Month - $30/Year
Advertiser : $3/Month - $30/Year
Full (maybe called Awesome ) : $5/Month - $50/YearAnd here are some interesting monthly contests to have :
Top 3 clickers per month earn a free monthly Clicker upgrade,
Top 3 promoters per month earn a free monthly Promoter upgrade,
Top 3 advertisers per month earn a free monthly Advertiser upgrade
And if someone is in one of the top 3 places of at least two of the above contests then he earns a monthly Full upgrade.In case someone has already purchased the upgrade he has earned then you could offer to return their expense in purchase balance.
This way clickers upgraded or not will be motivated to click more.. promoters to promote more and advertisers to advertise more..
Once the site grows a couple of tens of thousands larger you could widen these contests to 5 or more people per month.
I'm an ideas generator tonight..