We bought a spin bike at the end of last winter (around here I think that was around July, but really in March). Nice quiet magnetic resistance one. I was emailing back and forth with the wife about how many hours I need to spend on that thing this winter to both reach some weight goals and some tour/century rides I want to do next spring. I figure 3 days of HIIT a week and 2 leisurely 1 hour rides should get it done? I have a full season of Arrow to watch on Netflix, 25 episodes I think.