For a start, they could raffle a couple of boxes for the next home game at half time, all seat numbers sold could be entered.
Other than that, how about the more affluent supporters taking up a few games, why leave it up to corporate users.
There's a few that post on here that could afford it. Yourself included, Jan with her five figure salary, just to name two.
Also they're ideal for the more snobbish attendees that find some football chants a bit hard to swallow.