To each their own, I should know better than to try and argue financials on this board.
You cannot seriously think that the "percentages" of improvement you see marketed have a direct correlation to the "percentages" of improvement of on snow product.
Its like replacing a ten year old corrolla. They are both basic transportation. Sure the new one is more efficient, but is it cheaper to own? No. The other one still got the job done at a lower cost. Quality is negligible as they are both Toyota Corollas.
Replacing aging equipment does not equal automatic more awesomness of whatever they say it will give. But it sure sold you guys.