I'm with Don on this pretty much.
I've been thinking on the topic all day... had It been asked 5 years ago I might have thought of something that was still there - something substantial and useful that hadn't been adopted in some way or another, and I can't think of one.
It was cutting edge in it's day - but that day has passed and the sun has set.
I have a very good friend who's huge into flying planes - real planes. He ran into some very good fortune and was able to realize a lifelong dream of owning his own - he chose to buy and restore an Tiger Moth.
I scratched my head over it - told him he could buy 3 conventional small aircraft for the cost of having parts machined, built, restored, and of course having it pass as airworthy... and he just laughed and said 'I know'
His plane isn't as good, efficient, cost effective, powerful, fast, or even SAFE as a modern plane... but I know for a fact you won't get that feeling you get when you fly in if you were putting safely in a piper cub.
That's how I feel about my machine...
All that being said - I find if funny that the staunch followers of what was a groundbreaking home computer are now luddites.
*shrug*
Don't get that at all.