Rune Prices
Champions are super pricey, and that is understandable....Not really but it's not insane. Now what is insane is 410 IP for a Greater Glyph that gives you 11.25 mana. That's 3-4 games that you have to win to get one Glyph, out of the 30 rune slots you need to fill, for one page. and this one page is for only a select few champions. you still need to buy more runes for other champions, and if you want to do a unique build, like a full mana rune blitzcrank page, that won't be useful to anyone else, it'd be a buncha practically useless runes. So there really can't be much customization unless you had an absolutely absurd amount of IP which you've accumulated over 6 years.
Please Riot, do something about the insane price of runes. at least make a set of 9 purchasable with RP or something.