The NordicTrack Commercial Elliptical 14.9 ($1,999) comes with a 30-day membership to its workout platform iFit and a 14-inch touchscreen monitor, but that's not the most interesting part about this connected machine. During class, the trainers are able to control your elliptical's incline and resistance so you can focus on your workout, not on touching any buttons. A reviewer who took advantage of this machine's connected abilities wrote, "Enjoyed the hike. Loved the inclines. Beautiful ending."