Oh, thanks, don't know why these didn't show up in my searching. Oh well. I need to think about that price ...
I think it is some change in policy and stuff at ebay, over the years. So, the search (quite possibly intentionally, unless you pay ebay more money to get your item(s) promoted), doesn't show up. But I'm not an expert on it, so am open to other opinions.
I did a search (advanced search) on completed items, there was one main or sole seller of them, in the past. Who, fortunately was still selling them.
As regards the price, which I agree is difficult to pallet.
If they had been lets say $4.99 each, I bet either a collector would have already snapped them all up, ages ago, or reseller, would have bought up all the stock, to make a profit on them.
So, that highish price has kept them, at least available for you.
I was always curious about them, but don't remember seeing them for sale, when they were current technology (I'm not sure if they were significantly ever in the UK, maybe they didn't get here). They soon lost relevance in the PC market, when CD's became common place and affordable, with their massively high capacity, compared to floppies, also there were various zip and similar drives/discs, with much higher capacities.