Is it worth buying a Chinese laser used? *Pics*

[Dan Souliere]

There is a local guy selling a nice-cut.com NC-1390 (48"x36" work area) with upgraded 120w reci laser for $6,500. It includes all the accessories (air pump, chiller, exhaust fan). It's about a year old in 9.5 out of 10 condition. Apparently it was used for 50hrs and the tube life is 8,000hrs.

1. How much do these usually cost new to my door?
2. What should I look for when buying used?
3. Does nice-cut have a good reputation for support?

Any help is greatly appreciated.

Video of it in action:
https://www.dropbox.com/s/qofpqqf2nk...Laser.mp4?dl=0