I used those to get enough ram to run Red Baeon II on my 286 Packard-Bell...With a whopping 40 MB HDD. I could get a few games, some Warez and some utilities on there. A buddy reformatted my drive with some sort of reserve partition which kept file sizes smaller than 1k using 1k of disx space. It added a few more mb of storage space.
The reason I mentioned those was that there were certain games back in the old days that needed lots of tweaking of things to work.
Wing Commander I'm looking at you

but for 90+ % of the computer users it doesn't matter.
