Ken, have you considered selling your unsold 'looking for a home' games to some sort of games on demand service? I tried out the Yahoo games on demand service and it seems pretty popular.
http://gamesondemand.yahoo.com/play they use this product technology to deliver PC games via the net
http://www.exent.com/They license mostly existing titles it seems but who knows maybe one of these servics would be interested in exclusive games?