I didn't really do any economic estimate of bringing all of them back but yes, there is a sizeable desire in the US for military vehicles that are road legal. I have heard there are guys that are taking Duramax diesels and putting them in humvees and making them daily drivers. Instead of 10 mpg, they're now getting 16-20. Which still kind of sucks but better than 10 or whatever ridiculous number it is. (I've read as high as 12 for the standard ones, far less for up-armored ones)