But this isn't new, right? Almost all charges in-room are more expensive than standard - that's the price for convenience. You don't HAVE to buy the $8 Bud Light in the fridge or $6 pack of M&Ms from the snackbar, or pay $5 to have them launder a pair of boxers, or pay $12 for them to bring you a glass of milk and bowl of cereal.

(Now in your case, you received mis-information - that's a little different. But I'm still not surprised by how inflated the rate was.)