I think that is the true issue. There are many paysites out there promising the world but offering images or plugins they could find elsewhere. Disappointment may be the word describing the current surfer, having been abused, battered by pop-ups and now not trusting the recurring model.
I just did a quick overview of my affiliate stats:
In January 43% opted for a 30-day trial and 48% were converted
36% selected the higher priced single month
20% signed up with sites offering short term trials and 100% canceled
In December 64% went for the single month
and 21% opted for a 30 day trial and 60% was converted
Bottom line is that many surfers are now selecting the single month option and it seems a trend that those sites that offer 3-7 day trials are just giving away their content.
Bookmarks