I have no idea if they do or not. I'm not poor and I don't have that caliber of fridge so I'm sure it's not a hot seller. I also didn't bring refrigerators into the conversation.
Math does not. But saying Romneys plan is Mathematically impossible is a clear misuse of language.
It is like saying it is Mathematically impossible for a football team to win an individual game while some time remains. It may be PHYSICALLY impossible on many levels but not mathematicaly.
Now the season championship can be mathematically impossible.
I make no comment on the plan itself. If may well be economically laughable. But it is not mathematically impossible.
And since I am aware of that misuse I tend to discount the rest also and would not trust it unless I checked in detail.