Laurie,
I have used RANT 2000 for a couple of years now. It is a very good program indeed.
I consider the £90 retail price excellent value when you consider the quality of the package and the money you will save on 'blind flying' in a/c as a result of being more familiar with the nav aids.
ALSO (and most important!)
By purchasing the original you will be helping the developers of the product to STAY IN BUSINESS ! and in turn be able to develop the product further and provide back up and support for all the legitimate users.
Go and buy a genuine version, you know it makes sense
Cheers
JWF