How do PPS sponsors make money these days

[Northeu]

I have been thinking a lot about this and I can't figure it out
Is it not true that the retention on members is much lower now than 3 years ago? Is it not true that surfers are getting more sophisticated - they can get a 3 day trial and with their fast broadband connections they can download all content in membersarea and then cancel and jump to another site. Not to mention all the free stuff they can find when searching ex yahoo and google.
As I see it, only very very very very good niche sites can keep their members and the traditional PPS sites has to make money another way on the members who cancel? Are they sending out new offers after they cancel on other programs?
Maybe an entire new way of making money on adult internet surfers has to be found.
So whats the golden word? How do PPS sponsors like ARS etc make the big bucks?
BTW: Nice weekend to all in here.