I am not a GHI employee so I can’t speak for them…
But it’s open hardware, the price is unlikely to change, and if it does anyone else can walk away and reproduce the devices using the open design. I can’t see it significantly changing unless core product components significantly change or manufacturing cost changes.
The other part of your assertion (“all the NETMF implementation”) isn’t really valid either. You have to realise that the netmf is unique to each hardware platform, and even to each implementation. Two “porters” can implement netmf onto the same platform and get a different “product”. The features someone chooses to implement can be tailored, eg support different CPU features differently - there’s an obvious core that you can’t be without. The other thing again is that GHI for years have built their firmware capability, and you may not get those same features coming down into the open hardware line - it could be pushed back to a later release or could even be too commercially sensitive to release.
Finally, support is not as clear as it is today with the commercial products. Sure, you’ll still get top notch support from the community here, and Gus-bot will still be typing weird things, but a commercial product producer would definetely need to be willing to accept some additional risk if they chose Cerberus as a platform without talking through the support options with GHI.
These products are new, and this is really GHI’s most recent play in the Open Hardware arena, so I think the story will get clearer as time passes and we can see how things are going to evolve.