Here is an ad from a January, 1905 edition of the Boston Globe, touting the features of the 500-room Castle Square Hotel, at the time the largest hotel in the city.
$1 a day for singles with shared bath, $2 a day for a double with a private bath, and $3 a day for a suite. And. . . a combination house and long distance phone in every room! (I was actually surprised there were fully telecommunicating hotels this early.....)