Mac Mini's poor value argument...

[talmy]

Under any kind of reasonable usage and hardware scenario, the OS and apps will benefit most from the SSD, whether you start your computer and apps once a year or every day. Almost any type of "user data" that would greatly benefit from the SSD will by extension mean that the OS and app would benefit greatly from the SSD as well.

You can keep trying to come up with scenarios where you think it makes sense, but it doesn't.

Well I own 5 Mac minis, and I guess every one of them is used in an unreasonable scenario as far as you are concerned since none of them have shown significant benefit (well under 1% performance improvement) from SSD for system and applications and one of them exhibits several times the performance from having data in SSD.

Not everyone uses computers in the same way, you just can't make blanket statements. That's what I'm trying to say.