What do Realtor think of Radon ?

I was wondering from a Realtor's honest perspective what they observe when 
they come upon a Buyer...and your visiting a house with him that has a
Radon 
Mitigation System installed.   Is that a real downer for them & something 
that will change their mind ?

I live in Pennsylvania where Radon is prevalent.  I recently noticed my 
radon levels are around 7.0.     Normal levels are under 4.0.    I
recently 
had laminated wood flooring installed in the basement and the levels
dropped 
down to around 4.5.    Almost to the legal limits.

Im just really putting off installing a Radon Mitigation System...thinking

that would turn Buyers off alot.   Any advice and/or experiences with this

would be much appreciated.

John