Option for $15 RP purchase?

I think having an option to spend $15 worth of RP (preferably an amount over 1350) would be a great quality-of-life change, making buying epic skins a breeze. Even without some sort of discount to incentivize buying the $15 over a $10 and a 5$, a $15 dollar option would be incredibly nice to have as it's annoying to have to buy either a $10 and a $5 RP or a $20 when you want to buy an epic skin. I do understand there are marketing strategies that go into decisions like this (because humans are lazy, people spend $20, which helps the company make money) but it would prove to be a nice quality of life change. Not the most important thing, but something that would be nice to have for a quality-of-life change. Hope to see people telling me how I'm wrong in the comments if they disagree, so I can get a little more educated on Riot policy and decision making. Such knowledge helps one make better suggestions the next times, no? - I appreciate your time!