Hmmm.... How much money does he want to spend? Not kidding....
It would be cheaper to explain away the many variables of therory, and the way that electronics, and thier power supplies operate, which make the point nearly mute! But if he has no sense of reason, and money he wants to give you in abundance.... Take it all!
Might I suggest you break out the catalogs and spec's for Cryogenic oxegen free outlets, and some of the other CRAP LIKE THIS
. (Scroll down, and look directly into the prices, feel yor eyes burn with rage....)
Just remember to mark it up 100+% for the insult and trouble of locating and specifying such garbage!
Or go totally custom and dress up a k-rated transformer like this
, throw in some surge protection, and some other bells and whistles to really rake in that dough... Perminant installation of an O-scope to monitor it might be fun too.
BTW, surge protectors don't clean power, they just provide options for the rare high voltage failure. And won't save anything from under-over voltage from any other type of neutral loss, voltage gain or drop.
The only real way to "Clean your power" is to regenerate it, or through the use of a tranformer. OR A UPS UNIT..... (Well some types... The power conditioning type)
Tell this guy you can do the whole house. Right here