I've been with quite a few hosts and it wasn't until earlier this year, I tried an SSD. My site never felt slow by any means(nor did I get any complaints) but when I moved to my previous host and now my current host, both offered SSD VPS so i said "What the heck? Why not?" and jumped on in.
It's hard to Judge Performance seeing as I've only been back on Xenforo about 10 days since converting from IPB. But i am wondering am I simply paying more for something that really isn't adding much benefit for me other than just having an SSD just because.
Then....I get confused at various terms.
Pure SSD, SSD Cache(which I believe is the same thing as SSD Accelerated) and I am like "what is the difference and which is better?" LOL