I have two of them.....
I still have my original round-case C64, with two datasettes (C2N) and
THREE disk-drives (you could daisy-chain them) and all the controllers,
manuals, programmer's guide etc.
It runs GEOS ( a primitive GUI operating system, much like Windows 1)
in one drive, and programs in the other two.
And it STILL RUNS like a dream...

Wish I had a (very rare) HDD for it, though.
I have a later, square-case C64 as well.
I have, also, a large cardboard box full of
tapes/disks with applications, games etc.
I also still have my Amiga A500. It still runs well, too.