Oh wow, I started playing League of Legends back in 2012 or 2013. I cannot believe it's been that long, honestly. I've mained almost every role since then (besides support) at one point or another, and anymore I'm a strict ADC. I don't play League as often as I used to, and typically only hop one when one or two of my friends have the urge to hit Summoners Rift (or if there's a temporary game mode in circulation).
My friends and I have been playing a little ARAM and ARURF recently, which has been a nice change of pace and forces me to try out other champions aside from the usual marksmen I run (I have a ridiculous amount of points on Draven and Vayne).
I don't know, Riot does such a good job with League, I don't see myself abandoning it completely anytime soon even though my time spent in game has reduced so much over the years. Definitely still a blast to hop on with friends and play a couple rounds every once in a while!