In the use case they were pushing for consumers, accelerating a hard drive, it was pretty much indistinguishable from cheap flash.
Optane had great potential for big databases, but you're not running a big database.
It also had very interesting potential for supplementing memory, as a very low latency place to store bulk data. But then the Optane DIMMs ended up being just as expensive if not more expensive than actual RAM. So outside of certain niches, especially because of how narrow the compatibility was, just spend the money on more RAM.
Optane had great potential for big databases, but you're not running a big database.
It also had very interesting potential for supplementing memory, as a very low latency place to store bulk data. But then the Optane DIMMs ended up being just as expensive if not more expensive than actual RAM. So outside of certain niches, especially because of how narrow the compatibility was, just spend the money on more RAM.