My view is, Mark can do what he wants with Dire Straits, if he is not interested anymore, fine, I will still enjoy all the songs and albums. I don't think that he doesn't care, but it's more he has moved on, ages ago, I would be the same, why would you want to be constantly reminded of things you did upto 45 years ago, some people are ok with it, like Paul McCartney, but as Glen Worf has said, "He doesn't choose to live in his past" Good on you son!!!
Looking at the comments from that Tom Petty v Dire Straits thread, a lot of people just think the comparison is unfair, I can't compare because I have only hear 2 or 3 of their songs. Just look at some of these quotes from that thread:
1. Not a fan of either band but there are few bands more bland than Dire Straits. They are a band whose whole aesthetic is background music. Just an awful, awful excuse for a rock band. Tom Petty by default.
2. Gold albums aside, in a real sense Dire Straits was a one hit wonder. "I want my MTV...."
3. When did great music become a competition?
Comparisons of this sort are doomed to fail.
4. I happen to digg both for different reasons.
5. Why does everything have to be a competition???
The name Dire Straits is forever, when Mark and all the other members are dead and buried, the music will still be heard and sold, their are lots of people on YouTube, young and old who are only discovering that band now by doing reaction videos, and most are blown away by the songs.