I doubt regulations for smoking pot in public places would change if recreational sales and use of pot became legal in Nevada. In Colorado, public use regulations are, in some ways, similar to tobacco laws concerning businesses that ban or limit cigarette smoking. Some hotels have rooms available where smoking pot is allowed, much like they would have some rooms available that allow cigarette smoking. There are a few (very few) bars or lounges that allow pot smoking. I'm not sure how they even achieve that designation. For a bar or lounge to legally allow tobacco smoking within the establishment, they have to meet requirements of being a "cigar bar", generating a significant portion of their business income from the onsite sale of tobacco products.
Recreational pot laws in Colorado are pretty much set up to allow for personal use in private places. You can buy it at a very limited number of locations. Any city or county in the state has to make the sales within their jurisdictions legal, usually by ballot initiative, if they want it to be legal. Most cities and counties in Colorado have NOT done that. Personal private use is legal state-wide. Those that want to obtain the herb have to drive to a city or county that allows the sales.
I'd think any other states that are considering legalizing pot will be taking a very close look at what has happened in the two states that have already done it. Pot possession and sales are still illegal at the Federal level. Banks and credit card companies have had issues with allowing marijuana transactions that are, in fact, illegal under Federal law. One recreational pot outlet was fined $20k by the IRS for paying their Federal business tax obligations in cash. IIRR, the IRS considered the payment to be money laundering. The business was advised that they would have legal issues with their bank if they wrote a check to pay the taxes.
Something has to be done at the Federal level to resolve the legal issues involved with local/state approved sales of this product. Otherwise it will continue to be a cluster of conflicts.
...and not to worry. If Nevada were to legalize recreational pot sales, possession and use, you would not see usage legalized on any casino floor. Some hotels might allow it in hotel rooms, but that's as far as it would go.
