It is _possible_ that their rental bundle results in a better deal for a reasonable segment of the market than the aggregate of one-off title purchases would be

It is _possible_ that their rental bundle results in a better deal for a reasonable segment of the market than the aggregate of one-off title purchases would be. Though the lock-in means if they jack up the price it might become a poor deal after the fact. Or if you are the kind of person that would purchase fewer games than the total subscription fees would cost, it also wouldn't be better. But sometimes bundling is indeed a better deal for consumers.