Adjusted for inflation Glass was the price of an Apple One or the launch price of a Commodore 64 (which, if you preordered, came with a free cassette drive for storage: a $70 value.) It was priced correctly for for true early adoptors who wanted a prototype. Not as a consumer product. Google's stated target price for commercial release was "about the price of a smartphone."
It seems to me your adjusted for inflation price is talking about currency inflation and not the deflation in tech prices. $1500 is quite a bit of money for such tech in my opinion. This is especially so in light of Google's legendary poor customer service.
Marvelous other than the 1500 dollar price tag for an unfinished product, the lack of software, the abysmal battery life, and the obvious privacy concerns of this device being constructed by one of the most invasive companies on the planet?
I agree with the fact that it's the first, but calling it marvelous is a bit of a stretch.