I have been drinking water only for many years now and one thing I can say is that I have NEVER become bored or tired of pure water.
Now the catch may be that I don't drink tap water and I don't even like showering in it so I have a shower water filter as well as a high quality filter for drinking water.
Now we can debate the safety of regular tap water and I know that many ridicule the idea but I'm in the camp that says regular, chlorinated, fluoridated water isn't healthy to drink. You can read any amount of propaganda from utilities and authorities that its perfectly safe but I keep on coming back to this issue of whether you like to drink it or not.
I love drinking pure, filtered water and I am NEVER bored by it. Those of you that don't like plain water or get bored by it I suspect are drinking regular tap water.
Anthony