I'm playing LoL for more than 1 year. I'm in a clan but decided I didn't want to go the pro line at all. I'm doing a few ranked games a month and try to do at least the daily win bonus even with a bot game if I don't have enough time on my hands.
The least the game gives me is some chance to take 25min to come down from work.
The game itself can be fun if you decide that you don't let yourself be bothered by parts of the community or if you just go through the whole full premade clan loop.
I'm currently at around 1500 ELO and played 100% support champs like Janna, Sona, Taric, Leona, Soraka, Nunu.
Trying to learn some other champs currently, but it's hard to get your mind away from that "don't hit the enemy last" mind setup ^^.
About the Lux Jungle comment ... It's doable, if not best.
The Lasers shooting out of the jungle every minute catching you on your lane with low health can REALLY get you though ...
For fun try a Full AP Tristana Build it's hilarious.