http://www.vegastripping.com/news/bl...t-mgm-resorts/

Sources have told VegasTripping that MGM Resorts International is on the verge of announcing a new part of their Profit Growth Plan initiative - charging fees for parking in all MGM resorts self park garages in Las Vegas.

The new, mandatory fees will be charged to all automobiles that enter the garage - be it locals, casino players, diners, high rollers and hotel guests. .
I think it's possible that this will be waived for higher levels of the M Life program (as they do in AC for Diamonds and Seven Stars at Caesars properties).

I think this will backfire, though, unless other strip properties do this as well.