Price field with Currency outside of commerce and ubercart For a real-estate (realty) website I need to store and display the price, but the best D7 module for this is the price component of Commerce module. Is there a Price/Money field on D7? 

I have found the following modules:


Measured Value Field - Cool idea spans a lot of value types - D6
only
Units API - Really more for measurement, integrates with MVF
Format Number - Most recent dev version but not sure how rough this version is
I'd go with Commerce Price (part of Commerce). You don't need to enable the rest of Commerce.
The price module itself is relatively small (while giving you price calculation, and Rules integration for free, if you need it), and the rest of Commerce won't be loaded, taking only space on your hard drive, which probably doesn't concern you much.

That's the beauty of Commerce separation, you can use only a few modules that give you exactly what you need. I've seen that happen in many projects.