I 100% agree that its a hard goal to reach and I definitley agree that there are good teams around but there aren't many, especially in the east. I already said that I don't think they can do it but it is not completley outta the question. Cleveland won 61 games last year and that was with a roster that wasn't nearly as good as this Heat roster.
Bottom line, I would be more surprised if they didn't win atleast 65 than if they won 70 games
I think reaching 70+ is a goal they should have the year after winning a title, putting too much energy and focus in 70+ could hurt them come playoff time but at least if they had a title in the bag that could relax them a bit and they could just attack the record. I don't see it happening but it's not impossible.