For Marriott, the decision is both more costly and more complex. With 300,000 hotel rooms, such a move would cost Marriott in excess of $30 million. But Marriott may not be able to make the change, even if it wants to. Marriott franchises its hotels, and may not be able to legally remove the services because of its contractual obligations to those that paid to be part of the chain.
“Costly” is the key word there.
It is possible. La Quinta (sp?) has done it.