Some sponsors (like adult force) show you rebills even when you're on PPS, so you can do the math yourself to see what wil make you more money.
I tend do go for $35 when that is offered, but if someone offers $30 and don't have trials I go with recurring, since it only need to rebill once to make the same amount as PPS.
The most annoying programs are those with $1 trials with only recurring option and the member never rebills
