"edited since benn just covered almost everything i wanted to say"
Instead of replay why don't we have a system akin to the living forgotten realms "myrealms" for making up our own adventures? Our 4e players hate the idea of replaying mods and we run myrealms A LOT. As long as we keep adventure records free of special items I don't see why it can't be used. I hate the idea of replaying a mod but I hate the idea of telling a player they can't have fun with us more.