the discussion is improving!
I do buy into the "it's not about speed, it's about understanding the tech" argument, & calibre conversions are as good as any other testbed.
When I tried to set up ram discs for other reasons, win 7 fought back fiercely, hence googling, hence earlier comments.
PS I think that folks rich enough to try SSD are rich enough to replace the if TMP usage wears them out. Me, I'm waiting until they get much bigger/cheaper.