In most
(except Las Vegas) you don't earn Tier Credits when you are using "free play".
Besides perks like limo service between hotel and airport (just mentioning one), 7*'s have separate lines at (1)total rewards center, (2)casino cage. [I passed through Bellagio a few days ago--there are NO special "tiered" lines (for MLife players)
]
True, but in fairness, I have also only had to ever wait behind one other person when cashing in chips at Bellagio. Plus the main cashier has a good line of sight to their nightclub so you get some interesting eye candy walking by as you wait in line during certain times of the evening.