When my old business partner and I built our shop. We ended up with three tree mills. Kept two bought the third for the tooling and parts. Ended up being cheaper to buy the third than to piece the tool holders and needed parts together. It wasn't until after this that I had an opportunity to use a hurco n.c. machine Using bobcad and predator editor to program. I really like the old hurco machines as well. Same with tsugami chucker lathes.
I'll agree with fadal. I spent 6 months running 4 hurcos. But they were used for production runs of small parts that didn't need tight tolerances. I never used the hurco tight tolerance machining. The issues that I encountered were related more to communication between the p.c. and the machines. The dude at the shop next door had a fadal and it was constantly down.
The quick change collets work very well still I have a full set from 1/4" up to 13/16 and it came with a shit ton of tooling, rotary table and vise. Ive had it for probably 4 years now. The side cover with power buttons for auto feed motor and main motor blew off on the freeway otherwise it's in perfect condition. I almost bought a second one at an auction last year but it couldn't be powered up and was said that it was taken out of commission because it made noise. Didn't want a can of worms there.
They pop up quite often. Typically they are over looked because of the less common collet sizing. But once you have them I don't see them wearing out unless misused or neglected. Boelube t-9 is my go to for tooling storage . It has a high film strength and lasts for a long time.