I'm a bit annoyed they don't offer prices up-front, but a very nice product. I wonder if you can use a violin device as primary memory or you can only mount it as a fs.

I think they are mostly used as external storage, sometimes backed by spindles as a very fast SAN.

If you need huge amounts of local RAM then I think you're in the realm of the IBM zSeries and other mainframe devices. Nice stuff indeed, when you have the spare change...