[2019] People who spent money on the game, why?

Just opened My Shop. Saw that Pulsefire Caitlyn got a 50% discount. Sweet, a champion that I actually play as. But I don't really like spending money on things that feel worthless. I mean, I quit the game, will the money that I sunk in matter? That was always my assumption as a F2P player and my reason to stick to being a F2P player. Now that there's Legendary skins, maybe that might change? Idunno, $5 might give me a nice double cheeseburger, a medium sized soda, and onion rings at Burger King. So please, tell me why you buy skins? I want to know your thought process.