I will agree with the fact that the creators more then likely won't want to spend the money to put up dedicated servers. I still stand by my statement that all the years that I played other games on dedicated servers it performed more consistantly. 9 times out of 10 if you don't act a douche you won't get kicked off a server. If you do its not like thats the only server; suck it up, put your big boy pants on, and go to another server.
I personally would love the ability to rent my own server, set up a specific map list and have it running 24-7 for my friends and whomever liked the server. And no its not the same freaking thing as setting up a prvt game. Thats like buying some poor moron a Rascal and telling them its a Mercedes. No offense to anyone who disagrees but i really just don't give a horse....
I won't even begin to lie and say i have never been kicked. But forget them man, i never lost a minute of sleep over that. Go to another server, i always did. There would be plently of other servers, and the benefit of it is you can figure out which servers you play well on, and form friendships with the people who play there consistantly. This game is all about customization and to me that would be ideal. Being able set my sever to Nuketown all day, or literally having players tell me what maps they prefer and pick out what map they want to play.
But all this talk of dedicated servers will probably be useless because they're still probably going to use the cheap crappy hosting system.