I really don't know why, but the 750 EVL and 900 EVL both have a major cult following. They must be pretty good saws, although I have never run either. I always watch 750's when they come up, but all too often they get too rich for my blood. 900's are pretty rare, and can go for big money.
If you can, get a decent 900. They're a fun saw to run and have a surprising amount of torque.