One thing I find interesting, or two things as it may be. The sales of other grills , need not be directly tied to the sales of the Q450. That is, someone has the grill design of the Q450, and someone also knows the manufacture who built it. It would seem that potentially that grill could still be built and sold if someone wanted to and/or had the money to make it happen. I have no idea if that part of the business was more, or less profitable than the sales of other grills and accessories. I suppose they probably looked into different options before closing the doors completely , in fact for a while, the only grill left on the website was the Q450, so they probably did try to keep that going or had very likely looked into selling it still.
I guess my point is, there is a grill design, and presumably tooling at some factory to make the grill. One thing I will say about that grill, is whoever actually made the components did a great job on it, everything fit together really well.