I've always refused to pay the resort fee and only a single time has the hotel not caved. Course this only works if the hotel isn't sold out. I tell them its

I've always refused to pay the resort fee and only a single time has the hotel not caved. Course this only works if the hotel isn't sold out. I tell them its a separate service because not everyone uses it. So if I am not using say the pool or the gym then I shouldn't have to pay it. The single time I paid the fee was when it included Internet service which I needed. I wrote the CEO of the chain after my stay arguing that charging extra for Internet is like charging extra for electricity or water. Never received a reply.