"Silver Strikes. They'll end up being sold at the gift shops."
Not in NV, they won't.

"As soon as casinos realize that an idle slot machine with few players is a money-loser,"

Casinos know on a daily bases what each machine on the floor makes for the previous day. Nothing to figure out.

"I even saw a manufacturer producing slots tokens that have non-peelable stickers to ressemble chips. What about those?"

I think these are the ones you are talking about. The 1st order is going to the Lodge in CO, soon. They have holograms made by Dupont, built in tracking, and are very expensive. I doubt any one else has these samples. Osborne was very protective of the samples.

As far as tokens go, you are right, they are going and soon.