Sony launched a questionnaire in Asia where gamers were asked whether they would be willing to pay for Playstation Network. In return, subscribers would for instance get unlimited PSP and PSOne game downloads.
Seeing that Sony has always stated that PSN is exactly the same as Xbox Live, but for free, it would be a huge loss of credibility for the company.
On the other hand: if Sony would give subscribers access to all downloads while non-subscribers would have to pay "a la carte" (like with Xbox Live) I think it might in fact be a great idea.
From : http://www.fragland.net/