I think that would work ok, although you could probably do fine with 15% 90s games, 25% new games, 55% redemption. Or you could supplement redemption with some other kind of attraction - some places use a bar or laser tag, batting cages or what's starting to really gain traction right now are 3D/4D/5D theater rides. Those make huge money from the numbers I've heard thrown around. But they are very pricey to begin with. Also "Instant Prize redemption" games like BarberCut Lite, KeyMaster, Stacker, Winners Cube, etc. have been growing in popularity as an alternative to straight ticket redemption. But you won't fill an arcade with them.