I got an email from MGM Mirage today asking me to change my hotel pages to reflect this info. I don't have those pages, but thought some of you might be interested so I'm sharing it here. These are in regards to the holds put on your credit card at check in and are broken down by property: ARIA and Bellagio - Incidental Deposit $150 per night Mandalay Bay - Delano - Mirage - MGM Grand - Signature - Vdara - Incidental Deposit $100 per night Excalibur - Luxor - Monte Carlo - NYNY - Incidental Deposit $50 per night Circus Circus - Incidental Deposit $25 per night Below are the Terms and Conditions verbiage: The credit or debit card used to reserve your reservation will be required upon arrival to register. We will place an authorization against this account to cover applicable charges for room, tax and resort fees, as well as a ($$) incidental amount per day to allow you access to room charging privileges and may result in additional authorizations should your charges exceed the originally approved amount. Guests using a debit card in lieu of a credit card acknowledge unused funds are released upon check-out may take 3-7 business days for domestic banks and up to 30 days for international banks to become available through their financial institution.