I can see some people's point of view in their feeling that SF doesn't want to keep making certain hosts when people are just going to go buy aftermarket dropins for them anyways.
However, I have two lines of reasoning as to why that's silly if that's their reasoning. 1.) People who do this sort of thing are certainly in the minority, so I don't picture it as being a huge monetary loss on LAs. 2.) Yeah, we may be putting other people's dropins in them, but at least we're buying their hosts!!! If this ability to Lego SF lights and pop in new modules disappears with sealed heads, I suspect recreational users like many of us will buy fewer of their lights to begin with because we can't plug in new guts easily. The people/organizations that keep buying them would have bought them anyways whether they change them or not, so really what was gained by getting rid of the easily moddable Incan models?
I don't have tons of SFs, just a handful, but it still makes me sad to see this.