So the rumored 900P SSDs that use Optane are launching today. Here's a story with some details.Anandtech
just posted a review to the 280GB model.
While certainly not cheap, the prices are actually not anywhere near as high as what many people were expecting for such a high-performance product.
The 480GB model has an MSRP of $699 and the 280GB model comes in at $389.
To put that in perspective, the first enterprise Optane SSD, the P4800X, which debuted in March of this year, was over $1500 for a 375GB model