I will weigh in with a businessmans' perspective. I sell fitness equipment, and only offer a 10 day return policy. As far as I am concerned that is enough time for you to try a treadmill two or three times and decide if you like it. I think 30 days is too long and puts too much wear and tear on the machine. Also, I do not refuns and shipping or set up fees. Axiom by not having dealers really has to do this. However if it was me, I would charge for return shipping, if they are not upgrading. I agree with your post that a lot of people are probably abusing this very generous feature.

Shane D