I agree. GDGI's Cool-N-Save pre-cooling seeks a similar goal to that of a house fan, though with different methods altogether. The goal is to pre-cool the air, or eliminate excess hot air (house fan), in order to achieve highest effiency of the machine with least amount of energy: both methods help alleviate load on the cooling mechanism. While the house fan can eliminate hot air from upper levels and attics, it is not efficient for mass use in commercial, multi-level buildings. The product being sold here needed time to "sink in" - just as installing a "house fan" did.
The difference is that until recent times (struggling economy), efficiency didn't achieve quite the importance it has now - and pre-cooling the Cool-N-Save way is much more effective.
Businesses used to blow off savings that engineers drooled over - because most businesses didn't always consider ultilities as a big part of their improving their bottom line. They do now. Now they are embracing utility savings with open arms. There is a bigger market than people realize - both commercial and residential.
The fact that they may be a better choice over any competition is a bonus. The market for this product is increasing.