So, a lot of the Pro version makes sense in the cost increase. More powerful tube means a more expensive tube. Better optics are more expensive.
What I am curious about is this -
With the feed thru slot for materials:
There is engineering and design cost, and probably a small material cost from the base model. There is also the element of the openable sides require the class 4 regulation. I do not know if there is increased regulatory cost,or costs I am not thinking of.
Would it be possible to sell a version of the Glowforge which has the pass thru, but not the improved optics or tube?
I see a lot of applications that it would be handy to have the option, but not worth the additional cost of optics and 45w tube. For example, if I wanted to be able to make a strap for that satchel, or make a new belt! For a number of users, I think that the change from class 1 to class 4 laser is acceptable.
I would pay 500$ for that additional feature!