One of my best friends is from a country without tipping. He's well-traveled and has something like 20+ stamps in his passport. He says he loves tipping. I was a little curious so I asked him why, he said in countries without tipping, service is shit. Moreover, the demeanor of everyone involved is shit. He said "you Americans don't know how good you have it". I guess even someone fake being nice to you in expectation of a tip is better than being treated like dirt because you disrupted someone's cigarette break in Paris.

He said the only exception to this is Japan. He says they have, hands down, the best service in the world. Whether you're in a family owned shop out in a rural area or some upscale joint in Roppongi, the people there actually care if you've enjoyed your food (and will nearly be offended if you try and tip them).

Thought his opinion was a bit odd, but I think it might be valid considering his experience and the fact that he's not a naive, anti-establishment 20-something. He's fairly pragmatic and a realist.