While at the convention, I played the slots quite a bit. There is something about the sound and excitement of coins dropping in the Hopper that Vouchers simply can not replace. To me, this is part of the thrill of gambling. I played some of the newer voucher slots at Rio and it wasn't the same. As for carrying around "buckets of coins"!!! We all should be so lucky. The casino's should be careful they do not kill the goose that laid the golden egg.