[Dain42]

Considering how 10.10 traps machines older than about 3 years in the digital equivalent thereof, they missed their chance.

[epmatsw]

Happily using 10.10 on a 6 year old macbook pro :)

[jakobegger]

Me too :)

[wwweston]

I don't know. Considering that Apple's entire notebook line is now un-upgradeable, I think the future may yet yield many opportunities for older machines to get good and stuck.