All on property guest with a multi day pass can purchase e-tickets, which also includes APs. I've participated in e-tickets many times since it's beginning and NEVER buy my tickets until the afternoon of e-ticket night. I have yet to ever see it, or know of it, to sell out. I like to make sure the weather is going to be good before buying my tickets, plus want to make sure we are up to a late night also. We use them in the fall, spring and winter, but never bother in the summer, because the park hours are too late for us. Of course, none were offered during our 2 weeks in May last year and looks like none offers again during our 2 weeks this spring.