Another idea that won't be seen.
Is anyone else bugged by the "X per 5" readout on runes? Wouldn't it be much easier to judge value if you were viewing things per second? I'd much prefer it if Riot gave us a per-second readout. Then again, we'd probably see just how little our runes actually do at that point. +2.1 mana regen per 5 seconds comes to not even half a mana point per second.
And this is to say nothing of gold per 10. With full GP10 runes we get what... +5 per 10 seconds? That's barely half a gold per second. If my calculations are right, you're getting 1,200 bonus gold from that in a 40 minute game. That means by the end of an average game, we're not getting enough bonus gold to pay for a single completed item.
I think I'm gonna stop running GP10 now that I've done the math on that. I can do much more with bonus movement speed.