The point I was trying to make is (and I'm not putting all the work that folk have put into these OS's down) for you average Amiga user with say a desktop A500/600 or 1200 is just what use are these systems to them when they can't run them on a bog standard or 030/040/060 Amiga... 
I never were able to use Prepcard on my A2000 - and the HDToolbox won't work with my A1000 floppy disks...oh dear. :-)