So Gamestop sent me (and I assume other Power-up rewards members) a survey today, and about midway through, it starts to ask about how much money you spend in the Summer on games, before revealing something called the "Gamestop Summer Gaming Pass"
While this is more expensive than Gamefly, it does have the advantage of no shipping downtimes, allowing you to swap multiple games on the same day if you want. If I was still in school, or if Acheivements/Trophies still meant something to me, I could easily see myself doing this.
The pass would run from June to August, and would allow unlimited swapping of 1 game at a time at any Gamestop store, and whatever game you currently have out at the end of the window is yours to keep.
While this is more expensive than Gamefly, it does have the advantage of no shipping downtimes, allowing you to swap multiple games on the same day if you want. If I was still in school, or if Acheivements/Trophies still meant something to me, I could easily see myself doing this.