I think this is really cool, and the more competition and devices in this space the better. But absolutely no way I will spend that much money for a Google product, that they'll probably kill off in less than a year.
Samsung has already partnered with Microsoft in the past to make WMR headsets, and that did not prevent Windows 11 from dropping support for the device. The very same could happen to a Android-based headset.
And additionally, Samsung never released their Odyssey VR (or it's successor) worldwide, which in my opinion was the reason WMR failed as it was the best of the WMR headsets at the time of their release (of course the HP Reverb was better, but it came out much later).