The F3 was the top Nikon pro model when I was first getting into photography as a little kid in the mid 1980s (I got my first 35mm SLR, an Olympus, at age 11). I remember wanting one because it looked so cool and ALL the pros had them, complete with that bigass motor drive.
Now, I don;t see the point. Something that big defeats the purpose of 35mm photography. As Al mentions, a Hasselblad isn't much different in weight or size and it gives a LOT better image quality. I like small 35mm slrs, like the Olympus OM-4T bodies I now use. The F3 all alone, sans motor and action finder is actually not that huge and I wouldn't mind owning one though the OM bodies are still my favs...very tiny and light! Back in high school, my dad bought me an F4s, the top model of the day and I felt so cool carrying that gigantic expensive camera around school! I never use it anymore, just too danged big and heavy for a 35.