It's interesting to me to think that-from my vantage point-Macs are more popular than ever.
I don't teach a subject or in a manner that's conducive to taking notes on a computer, but none the less I can look out a lecture hall and half or better of the computers I see are Macs.
Next year's freshman class will be mostly people who were born in a year that starts with "20", and in the context of Macs that means that most have not been a world where the Sawtooth G4 was "the first home Supercomputer" or where WiFi was just a novel new idea.
Even though I wasn't a Mac user back in those days, I still followed their development. I used iMac G3s in high school, although I developed a hatred for them. I now realize that it was probably because the administrator didn't know anything about Macs and the OS installs(I couldn't tell you, but I'd guess that most were running 8.5, the shipping OS for the "5 flavors" tray loaders) had a lot of baggage that students had likely installed.
I DO remember when the G5 Quad came out, and spending a while playing with one connected to a 30" Cinema at Best Buy(I don't think there was an Apple store in the state at the time). Everything about it blew me away, but I was a senior in high school at it was incomprehensibly expensive. Heck, 12 years later that set up still would have been incomprehensibly expensive new(I have enough equipment to duplicate it a couple of times over now, although I paid used prices