@.@ How do you people get hour long games. I'm lucky if I can get one that lasts past the 20 min surrender mark.
There is always this AD carry/random damaging champion that enjoys farming his 300 minions/jungling the ***out of the map and you never see him in any team fight until the 50min mark (i do this in bot games <_<).
By then, people destroyed all turrets/inhibitors of the map and are still not confident in an all out rush to end this. That's what happen in most of my matches, I reach 45-60min every time there is no surrender at 20.
Be prepared to get blamed a lot if you want to jungle.
This is LoL, it's not a real match if you aren't blamed for any reason, my body is totally ready for this.
I saw a Varus ending a match with a 41/0/25 and he was still called an "incompetent noob" by the rest of the team and reported for feeding the enemy team, no joke. It's hilarious how many reports there are for feeding in the tribunal and the players are often between 0 and 7 deaths in a 40min+ match.