You can buy a 128GB SSD for less than $77 (plus the cost of a new CPU and motherboard). Exactly what is Intel's value proposition?
Here, let me do your thinking for you.
1 TB NAS drives are running about USD $65 at Newegg today. You'll want to run two in a mirror configuration. (This will double your pathetic read IOPs over a non-mirrored drive, and double your sequential read performance to 300 MB/s.)
Both of those, plus the Optane SRT, works out to $207.
A single Crucial MX300 1 TB M.2 will run you USD $289 all by itself. The SRT-boosted system will probably allow you to search your file system metadata faster than the SSD. 300 MB/s sustained sequential read is actually pretty fast, if the hard drives aren't constantly interrupted to fetch small-block metadata.
Clearly, though, this product does not displace an SSD in your single, small SSD consumer box. Like, for a guy with nothing much to store, and infinite faith in angular's 50 different shades of cloudy "I agree".
While we're at it, let's clear up a second common misconception. Most people think that "pair" in "pair of pants" refers to the biological bilateral symmetry. But no, it actually refers to the sociological bicoronal symmetry—the imperfect, candle-light symmetry between front and back. Because I just know that you're going to complain that Joe consumer is not going to pony up for a NAS drive pair.
Well, Joe consumer does not have to pony up for a NAS drive pair. Best Buy will sell him the front half of the NAS pair for exactly half the price. And then the Best Buy moron-vultures will tell him that with only one drive, now he only needs the smaller Intel SRT, and now the wallet bump for 1 TB of SRT-enhanced NAS drive is down to a very attractive $109 and shoeless Joe gets some new shiny to crow about, too.
"But the other store told me all I needed was 128 GB!"
"Have you heard about the number of pixels in the camera of the new iPhone 9?"
"Really? The iPhone 9?"
"Yeah, it'll be so amazing. Don't be caught short with a tiny little SSD. Hey, and check out the mirror, too. You're looking gooood."
For this purpose, Best Buy has a special hand-held mirror, only slightly larger than a dental mirror, which makes it almost impossible to see the startled expression on the face of anyone milling around behind you.