Having to ship the GF back and forth to replace the tube is going to create some problems. Hopefully, none of us will have machines damaged / lost in transit. Hopefully, none of us get a different machine back than the one we sent in. And hopefully, the turnaround is quick so that those who are using the machine for commercial purposes don’t get hurt too much in the pocket from the down time.
Would it be great if there was an easy and safe way for the tube to be field installable by users? Yep. Maybe, as a middle ground, GF could work a deal with Best Buy or some place like that where you could take the GF locally to have a new tube installed. But there has to be a critical mass of users for that to work.
But here’s what I think the GF can do to help with the planning of the tube swap. They should have software built in that advises the # of hours or whatever of life the tube may have left in it. So you are going along happily using it over time, and you see that number get less and less, and you can figure when it is you may need to send the machine in for a new tube. And you make sure you don’t schedule big jobs that might conflict with that down time.