I used to sell antique, rare, and class III guns. I have never seen one of these in person. If they're in good condition they can be worth a lot of money to a collector. Many of these pistols were destroyed in the impact of the drop. Also they were made from thin sheet steel, many surviving pistols rusted away.
The ACUs worked well if you were covered in mud or dust, also you could not sew combat skills patches on the uniform. The only positive thing is that the ripped less than the BDUs, for me at least.
@ jimbo: every US armed force has an has an honor guard with a drill team with arms. Only ours are much more impressive... and in this example dangerous http://www.youtube.com/watch?v=1dxTBK7jI1s