On these types of courses, is it the same price for a round of disc golf as it is for a round of ball golf?
Typically, disc golf costs about half of what the ball golfers are paying.
Can you still rent golf carts for use during dg rounds?
Yes.
The greens being OB seems like a very smart idea. What about tees?
Two of the three courses I have played just tee'd off from the regular ball tee. The advantage is that there are three tees, the disadvantage is that they are always wide open. The course that had its own tees was a lot more enjoyable. They were usually close to the ball tees.
How do the ball golfers react to these types of courses?
Van Buuren - This course is usually dead, which is probably why they installed the disc course. The only golfers I have run into there have been drunk and just joyriding in the carts. Also ran into some golfers at the 1st tee there and they let us go ahead because they knew we play faster.
Sun Valley - A 9 hole course with lots of elevation, was the most 'golfer receptive' course I have seen. The ball golfers were all very aware of the disc presence, and they were very cool. They let us play through when we caught up to them.
Center City - The owner of this course is very enthusiastic about the disc golf course. Tee times prevented us from ever catching up to a golfer or having one catch up to us. Nobody like, hissed at us or tried to run us over in their golf cart or chip balls at us.
All in all, the ball golfers have never made me feel uncomfortable. Maybe people out here are just not as concerned about being dicks to each other.