Jim,
Good luck finding a set of the Riviera chips at $300 a set in five years let alone $75! The Ed Roth set from the Hard Rock came out about 3 years ago & would be an R-3 (one level below what you made the Riviera set) in Campiglia & Wells's rareness category. Can you pick up a Roth set for $50 - $75? Not likely..............Andy - Las Vegas