Steamrolling or getting stomped

Hi Guys

Am I the only one experiencing only two possible scenarios:

-We (My Team) just totally dominate them and win in about 20-25 minutes -They (Enemy Team) win ridiculously high and we surrender or get defeated earlier

When I first started playing, there was something called late game and close fights. Not that I enjoyed playing for 50+ minutes, but such short games don't feel right. Also some late game champions are quite limited now: Nasus can't farm up to a million stacks, Tristana can't reach the late game etc.

What do you think about this, do you experience the same thing? Frightpest