I agree. Like ask all the friends I play with. I usually take a break every hour or two just so then I can either have a little rest and do something else (because I'm super competitive and Uncharted really gets me worked up) or I'll be getting something to eat.
1/4 of the time you're having an awesome time killing noobs, getting 20+ kills per game, earning a load of tournament points. For the other 3/4, said noobs are being a complete burden, your team's losing, and you're going 28-3.
This is a true story. It happened to me. Rage was had.