I'd disagree a bit there, but my use cases are not perhaps average. One very useful aspect of SSD's (to me at least) is that their sequential's are insane. That allows me to create VM's and lob them off to wherever they need to be on the network basically at full wire speed (let's say a gigabyte a second), and then dumped to traditional disk at a more leisurely rate - let's say a hundred or so megabytes a second. The time savings are immense.
It is true that even with a daily normal use, we feel a bigger dynamism with a SSD.