I switched over to a SSD (from a 5400 rpm drive) in my new laptop and didn't notice much difference at all. Everything was instant before, and it's still instant now.
This may be because I have a lot of ram, because I mostly work with small files, or because I'm using Linux which seems to be more resistant to bad disk IO speeds.
you never load a large program like gimp? The speed difference is huge when loading up gimp on a rpm drive vs ssd. It's also pretty big when doing something like a "select count(*)" over a huge un-indexed table.
This may be because I have a lot of ram, because I mostly work with small files, or because I'm using Linux which seems to be more resistant to bad disk IO speeds.
However I do like the gain in battery life.