If you have been to more than one hotel, has there been a big difference in each hotel in terms of services?
we usually get the cheapest package; the minimal service has mostly been the same.
yes
somewhat, it depends on whether it's just a place to sleep (if it's a short trip) or if you were to stay for 2 weeks or more, then the facilities and services would matter a lot more if you chose a high-star hotel.
yes
of course. it also depends on how many services one uses or what the purpose of the trip is.