But DCS has taught me better than that!
That price does seem reasonable, though, on the face of it.
533MB download...
Oh - just noticed this video on You Tube:
http://www.youtube.com/watch?v=7PUhW1thnxU
from July this year!

Moderators: Guru's, The Ministry
So, the houses are FSX autogen ones.Revolution-X injects a comprehensive Autogen layer into FSX on top of photographic scenery such as Just Flight's VFR Real Scenery add-ons, placing millions of buildings, trees and hedgerows in their real-world locations across England, Scotland and Wales.
If you have a custom install of the VFR Scenery then Revolution-X won't find it. Mine is All-in-one, and it couldn't find it.
However, if you click on "Options - Expected Scenery Tiles" all the instructions are there. I followed them, started FSX, enabled the two new scenery areas and everything was there.
If you have a standard installation of the VFR scenery, and haven't renamed anything then there should be no problems.