Dan seems to be aware of most of the "issues" with ICDs. Under no circumstance do you want to buy a Beschi gun as an investment. The parts were rejected by Steve as being inferior and who knows how and who assembled them.
I've seen, shot, and handled many of the gun both Italian and Krupp/VGM. I, currently own 5 (all Krupp) and Bob isn't far behind. These guns have received a lot of "bad press" on this and other forums. I have to believe that most of the people commenting on this issue have little experience with these guns and are far from experts. Dan, you're the exception. It sounds like you have dealt with problem guns.
Were there issues with some of these guns? Yes. The vast majority were well made and truly a bargain at current prices...try and find one. JTH Agency has one for sale, a Krupp gun for $6,500. This gun is a 20ga., 30"bbls, IC/Mod, PG with BTFE. The gun is perfect. Try and find something else out there at this price.
Parker Repros are commanding this kind of money and they were a production gun with issues of their own...a single trigger that doesn't work for one thing and "case coloring" that has the quality of finger paint for another. Somehow, these are always glossed over.