For those of you hanging out in Las Vegas this week, the Boyd properties are offering a $100 slot dollar bonus on any royals from 25-cent max coin on up. Lower values have smaller bonuses. This lasts until the end of the month.
The Gold Coast has 16/10 NSUD, which returns 99.73%.
Perhaps someone could help out and report what that kind of bonus would add to the 99.73%. If you are a senior, and play on senior days, you accrue various perks that probably make this, as Rob might say, a pseudo-positive play. The five times (or more) points, drawings, and free meals on Wednesdays for seniors are probably the best deal.