I've got two 180s here:
a greyscale with nice steady display but a busted disk and some internal support damage. It boots nicely from floppy, but the old 120MB disk made siren noises. Replacing the HD with an 80 MB from a 170 wasn't recognized in Apple HD SC Setup (but then, I don't hear any...
I picked up a Macintosh Classic at an electronic waste roundup the other week. Despite the case being badly discoloured and giving a RAM-related Sad Mac on boot, I could tell that the Quantum HD was still spinning and the display is really sharp.
The machine has its problems, and I'm wondering...