Many times we are asked to buy something that is a new product because "It is good for our environment" This always begs the question, is it really or are we just being told this for other reasons? Maybe I'm the only one that thinks this way, but I think that there are many more of you out there that thinks the same things. Well, this is one of those times when we are asked to think of the environment and suck it up. But the interesting fact is that the "R-22" refrigerant that we are letting be phased out has a greater ozone depletion potential than the "R-410A" but the "R-410A" has a greater carbon dioxide polution potential. Its funny how the unintended consequences of our many government laws cause use to wonder who is making these senseless rules that cost so much money to implement and for what purpose? Just my rambling thoughts.
On a side note, the R410A systems also run at much higher temperatures and pressures potentionally causing shorter life spans as compared with the old systems. Who am I to question these wizards that throw down the regulations. I guess I'm just some guy that is supposed to do what I am told. Oh well I guess I will have to conform. Finally to answer the question, why switch because its the only choice you now have and it works.