Yeah, I know the feeling about not having space. I don't actually have most of those anymore, because of that reason. I did have them all at the same time, for about a year.
For the most part, I was only hanging onto them for compatibility with some old software I had collected with them. Currently the only 1 I know I have, is an old 6500/250 tower, and the B&W G3. It was a sad day when I got rid of the AppleIIgs.
I had setup my old 7200 using the Microsoft Personal Web Server control panel for my local nework. One of these days I will definitely have to set it back up again.