My PC has both a standard, non-hybrid magnetic disk for volume, and a very, very fast SSD for speed. I use the SSD for development and, humorously, Steam games. It's nice, but given that I have 8GB of RAM and most everything I touch regularly is cached...and I virtually never turn my PC entirely off (S3 sleep is your friend)...outside of database tests it just doesn't make that much of a difference.