I have been away at the MVP summit and then on holiday for a couple of weeks. On this trip every hotel I stayed in had free internet, though often only wired. Seem many hotels have Wifi contracts with mobile phone companies and they are still charging for.
So top tip make sure you have UTP cable in your bag.
The ‘most interesting’ system I had was at a hotel in Whistler.
I decided not to touch it and used the free Wifi from a nearby coffee shop!