Good points. Personally, a lot of the appeal of open source is not so much about having free stuff, it's more about being able to learn from others. I learned a ton from the various engines Id Software released back in the day, but have no expectation that they maintain them.

If it comes to stuff I actually want to _use_, I avoid projects backed by a single or a few companies - like Sapling. So from that angle, I'm not particularly impressed either.