Uhh, the games aren't "free" if you're spending a minimum of $200/year on a subscription fee. And I don't know about you but not all "hardcore" gamers spend that much a year on games. I don't think I spent that all of last year, and certainly haven't this year so far.
Ok, fair point, but your also not taking into considerationg a lot of gamers do buy more than 3-4 games a year ($150-240+). So then I suppose a tiered system could be set up, packages that grant you a certain amount of hours. I have to say I'd consider it because for me, I buy a lot more than 4 games a year and it would probably save me money in the long run.