Hibernate means, for me, a faster startup and all my files I had open stay open.
My Windows 7 PC takes less than fifteen seconds to boot from the SSD, and much of that is just getting through the BIOS to the point where it starts reading from the disk. All Hibernate would do is waste about 15% of the SSD for the hibernate file, and prevent Windows from shutting down and clearing out the crud it accumulates as it runs.