Cashed in over $3000 worth this past summer. QQQQ absolutely and I'm pretty sure Caesar's took all of their group and I did cash in all the M group.

In the Fiesta group, cashed in some that others in the group would not but did have some none would take. Arizona Charlie's which includes Stratosphere took them all also. Tropicana discontinued all chips about two+ years ago and wouldn't take anything from prior to then. That was the worst.

Overall, cashed in about 85% of what I took to LV.