I assume this already exists. After all, you do have to search for stuff you want and that’s all price checking is: checking similar stuff and comparing prices.
OP and others are just asking for a way to do this outside the bazaar while playing, kinda like awakened poe trade tool does.
I’ll admit that awakened poe trade is a really useful tool, but PoE’s trade system is a different beast from LE’s. I don’t know if it will be as relevant in LE as it is in PoE.
That is always the case. Just because you have a tool which would easily tell you how much items are listed for doesn’t mean that that is a reasonable approximation of their value. If the first person to list a particular unique put it up for 1 million gold, doesn’t mean that that is the value of said unique.
Why?
Because if we can’t check the prices on stuff we want to buy, trade will be more like a puzzle/mistery game? 
Unique or Set items are not what I was talking about.
i was talking about Rares and Exalted Items, because there will be a huge variety in hwo certain things are priced.
Hm, yes, that was actually my point. @Heavy was saying he hoped there wouldn’t be a price check feature in the game and I was saying that one most likely exists in the Bazaar, which is how we will search for items and check their prices.
That wasn’t the point, I only said “unique” because it was the first thing that popped into my mind.
If the first person to list a particular thing put it up for 1 million gold, doesn’t mean that that is the value of said thing.
Is that better?
No it doesn’t matter, for Rares and Exalted Items it will be quite rare to have identical items with identical rolls.
When you are at the bazaar and checkign for simialr things seeing people prices can be a hint but as you said can also be not very useful.
But that brings me back to my original point. You should learn these thigns over time, because in the grand scheme of things some singular overprices or underpriced items will not matter that much.
agree, they did it very well
What’s stopping you from doing that right now? I do it before listing any item for sale. Works fine.