BE is useless

There used to be the argument that IP is a strong currency in game since it lets you get to 20 rune pages and all those runes etc. You still could cheat a bit with ip boosts being bought with RP but still. My question is, IS there ANYTHING at the moment you can buy with BE but not with RP? If not shouldn't there be some stuff even if it is icons or such? I would love to spend BE to get a 3rd or 4th reroll for aram even if it cost 20k BE since there is nothing usefull to buy with it. Ok there is the mastery thing but that is so minor and inexpensive it does not even feel special anymore since everyone can get those lvl 7 things. Maybe add some bling stuff you can buy for your account that is not even hard to implement, like colorful name letters/customizable client colors/or even let us create our own icon The logical thing would be to let us convert to orange essence with a hugely unattractive ratio (like 100 BE to 1 OE would mean even 100k would be 1000 OE not enough to even upgrade an epic shard) or even spend 50-60k BE to get a 975 skin but i know Riot don't like to lose even 1 penny so I am hopeful they will implement something to spend BE on that is not champion mastery.

TL;DR : WE NEED MORE STUFF TO BUY WITH BE