When i was at school (mid nineties) my high school was in the final stages of upgrading its network from a bunch of BBC BASICs (a machine running M$ BASIC, similar to the BBC ELECTRON) to an Appleshare network of Macs and Laserwriters. Both sets of machines could use the same network, but of course not all machines could run all the programs, et c. At the time they had maybe just over a hundred Macs of various models, a few SEs and some LEs and PPCs possibly, in 3 different labs, and in departments all round the school.
When i left for college, of course they had M$ windows 95 with M$ works et c. Slow and boring by comparison, and after our Computing Department had told us that Apple was the future of computing, i wondered a little at the general "spit and sellotape" system the college had in their labs (only 2 labs, despite having about twice the number of students than at my high school).
Well, my sister tells me that the high school still has a Mac based network. I reckon they may have up to a dozen PCs, and you can bet all of those PCs will run Windows, but they retain a healthy relationship with Mac in their teaching and their networking.
It makes me wonder what's wrong with the rest of the world!