It is more than a bit annoying to see them abandon us even more than before now that they have a chance of making substantial profit, but I know I'm not the only one who can say that Graal has had more influence over my life than almost anything else—my future career will likely involve programming on a regular basis, which is largely thanks to the experience I gained developing on Graal.
It's a complex issue. I don't know where I stand on it.