I know I am getting a bit off-topic here, please excuse me...
Actually, many hotels in Europe and the US don't have a "standard rate." Moreover, most of the time it is cheaper when contacting the hotels directly (by phone, or turning up).
This is
no secret, and there was a major American newspaper (and a Danish paper) who tried to call some hotels in Europe and the U.S. directly to book a room, and the results (prices) depended on the caller's
accent, age, and country!!! Also, the
TIME of call!
Furthermore, it depended on if the customer came personally to book a room and looked like a businessman, German tourist in the 20s, or an elderly couple from Europe....or booked a room through the phone.
E.g. a guy with a clear French accent, or someone with an American accent got a more expensive rate than the elderly couple from Britain....etc...there are many examples...I know it sounds weird!
I don't know the specific rules...
nor do I know which age-group and accent is best to have - it all depends on the hotel!