Since this topic was sort of hidden in the closet these days, I thought I would offer this opinion. Sometimes all of the above reasons are right, just at different times. I bought a 128k off of Craigslist after having bad to disastrous experiences with an SE, Classic, and Classic II. The vintage hard disks let me down on the SE, the Classic was working for several months (but not as long as the SE between both hard disks) and then the video blew out, and the Classic II was packed so poorly it died in shipping.
So I see that, after about 20 other vintage to retro computers with around 30 different vintage to retro hard disks all failed in the end, that I would have to forego the safety net of mass storage and try for the one machine I had previously shoved aside as not rare enough, not capable enough, not anything enough, and see if it would do better.
Long story short, I found a 128k that had all of the characteristics I insisted on, even if I had to accept every single one of the things I was willing to compromise on. It wound up working for over a year and is still working today. I couldn't get that out of more modern computers. (I had a Quadra 700, but it's hard disk died after 2 weeks. Click of Death. Same thing with an LC 575, and the SE with 2 separate 20SC hard disks. Had that not happened, I might still have those three machines today, and be much happier. Also happened to a Performa 6400/200 with 3 different hard disks. That machine I could watch TV on.
I now have an ImageWriter, a carrying case, an M0130 external floppy drive, and have purchased but not received a Kensington System Saver (those four from evilBay sadly) and I have not regretted going without a hard disk on a retro computer.
(The 400k floppy drives used in these older machines seem to be much more durable, even given that they are removable.)
Kindest wishes sincerely most,
Alex Harris
(P.S. The Twiggy prototype that just recently dropped to the slightly more affordable sum of $74,995 and some odd cents is an extreme case in point.)

