The Rune System is Absolutely Horrible!

I've recently been looking into expanding my selection of runes. I have two generic rune pages that work for anything (AP and AD). I spent the just over 20k IP that I had been saving for several levels when I hit level 30 to get those and at the time I didn't think too much of it. However, I want to get a set of Hybrid pen marks for a few of the champions that I play. Looking at this I realized just how retarded the Rune system is. I mean for fucks sake riot could not have set this up worse. Right now a set of hybrid pen marks is 7,380 IP. In my last 21 games I have made 2,300 IP... So if I got 115 IP (the average from those 20 games) every game I would need to play 45 more games to have the IP needed for me to get ONE set of runes. Assuming that I get 115 IP for those 45 games and each of those games is exactly 20 minutes not counting queue time that is 15 hours that I need to play. However, I won't get 115 IP every game, and those games will most likely be longer than 20 minutes. In total those 21 games came up to about 12 hours of gameplay. so I'm looking at about 25 hours of gameplay to get the IP for ONE set of runes once again assuming each game is only 20 minutes and I get 115 IP each game. So I have to spend over 25 hours to get only ONE set of runes. Good thing runes don't affect the game at all so if you can't afford them you don't have to worry about it. -_-