The '84 was a 700, not a 750. This was due at least in part to help Harley get back in the game. There were high import taxes on bikes over 700cc's
I owned one for a few years and sold it to my brother. This was a great bike, but I wanted more so I got a CBR to take it's place. Great bike for the time. I bit heavy by today's standards.
There is one for sale local to me with 22k that I keep thinking about. He wants $1000 now I believe.
Edit: I think Tim Hancock still has one...