Brilliant tools for PoE - But what are we missing?

We've got some pretty awesome tools for PoE, for example poe-racing and poe.trade, which are doing really well right now after some hiccups along the way.

I was listening to havoc's stream a few weeks ago, he and others was talking about what functionality would be good to have in poe-racing, like more historical data over how the race went and such. We used to have http://poestatistics.com/ but it haven't been updated since Essence, and poe-racing doesn't save history.

We discussed about using graph math to calculate the best way to shape your atlas in theuberelite's stream. Could be a neat way to really confirm which is the fastest way, using math to prove that it is.

Is there something that you feel is missing from the current tooling of Poe? Please come with suggestions, I'd love to hear about them!