I've collected several of the Lake Tahoe casinos for a number of years Frank. Some of my specialty casinos are:

Harrahs: Reno and Tahoe
Harveys and Wagon Wheel: Tahoe
Sahara Tahoe
Cal Neva Lodge (later, Cal Neva Resort): north-shore Tahoe

I collect all chips from these clubs, without trying too hard to get all the later "collector chips" from Harrahs and Harveys. Although I don't collect roulettes as a rule, I do try to get all the older Harrahs, Harveys, and Sahara Tahoe roulettes and have quite a ways to go.