My uncle still has his Macintosh amp. He's the culprit to introducing us to a-then very expensive hobby. Haha.
I thought about converting my all CDs to MP3 files. I do have most songs I like digitally. But then what would I do with the 3 shelves of space on my bookshelf? Haha.
I don't have as good a system as before but I have a QUAD center speaker, Definitive front & rear speakers, and a Yamaha receiver (my Denon had died after 12 years). I mainly use the audio system for movies/television series (can't be too loud living in a coop building). If I want to play a CD (rarely do), I'll use my Sony DVD player. Otherwise, I hook up the iPod via the USB port on the Yamaha receiver.
Awesome that your components still work and you use them. Our AR speakers were quite big and bulky but sounded great.