I beg to differ
I got 2 180GB SSDs in my system, along with 3 2TB HDDs.
The HDDs are used for data storage, the SSDs are used for the Windows OS - one to boot on, the other with the pagefile and one game that takes ages to load.
Ever since I installed them, I experience very fast boot-up time (once a day, so don't really care) and nice general performance from my Windows system.
That one game also benefits immensely from being housed on an SSD since map switching times are divided by ten compared to what they used to be.
That kind of performance is worth every penny to me.