@Riot Have you ever thought of making a suuuper cheap skin tier?
Where the only thing that's different is the splash art?
For a lot of skins, I notice the splash art on the loading screen, but afterwards I don't really notice anything ever again. Because I'm playing the game and focusing on other things.
You could release older splash art for the nostalgia http://lolwp.com/wp-content/uploads/Pirate_Splash_0.jpg
or make Chinese splashes available for people who prefer them http://www.wallpapershd1080p.com/wallpaper/wp-content/uploads/2013/10/28/34199/League-of-Legends-Wallpapers-23.jpg
or even make totally new ones like... I dunno...
A Braum buried in poros
or
A Draven looking at a massive portrait of himself
or something.
People might accuse you of making a cash grab though. (but when do people NOT accuse you of making a cash grab hehe)