Originally Posted by ac-ua
one could argue that's it's an extra service, which may warrant tips.
.
Errr - I would regard it as either
a) included in the cost of the room
b) a marketing gimmick of the hotel
It is not undertaken at your specific request but is the arrangement a hotel has for guests in certain rooms grades.
In any case, if I worked on the front desk, I would welcome to opportunity to walk around and chat with guest rather than to stand around waiting to serve guests or be hassled by long queues of guests standing in line waiting to be served.