was in Vegas for the weekend with the whole fam and Mandalay Bay charged us a $25 per night per room "connecting rooms" fee (a fee that was not disclosed during booking or anywhere on their published policies) so in addition to a base room rate of ~$200/room/night, a $50/room/night "resort fee", ~$26/room/night in taxes, and $20/night parking charge... there's a hidden $50/night added on for families with adjoining rooms leaves a really bad taste after an otherwise pleasant weekend