FWIW, the first ZIP drive I bought had the Click of Death right out of the box.
I never got a Zipdrive --- I was somehow able to wait until the new HD/usb technology came of age.
I used to use Zip drives a lot to move large files between my office PC and my home PC, and never had that problem with them. The only problem I did have was that they were so SLOW, especially the parallel port drive I had on the office machine (I had an IDE model for my home box). At any rate, I don't use them any more at all. I bought a 256 MB USB flash drive to carry files back and forth now, and for really big files I just burn CDs.