The new runes aren't THAT different, you just need to adapt your playstyle. Of course I play adc and support, so I'm a bit biased, but this is how things go every season. There is a major overhaul of mechanics. While this is a much more drastic change than previous seasons, and some off meta stuff can't be played anymore, there are also more possibilities. The new runes all have major impact with the game, so your choices are going to be a lot more meaningful, which is what riot is going for. Not to mention the bar of entry for ranked and the game in general is a lot lower, since you get champs while leveling to level 30 and don't have to buy runes. Its overall a better, if not a bit flawed, system that is more beginner friendly. Just think of last season's pre-season with the assassin rework that came with plants and lethality. EVERYONE hated plants, and now they're a pretty handy part of the game, and there are complaints about lethality as much as there were armor pen. Its just different, and that's how they keep people playing the game. Not to mention, they've gone out of their way to reward the vetren players. I've been playing since season 4, while not nearly as long as many people, its definitely not a short time either, and I feel like the rewards that they're giving us are great. Not to mention, they're free. There are a lot of game companies that wouldn't even do that.
