With New Balance closing these out for $499, it makes all the sense in the world. Parts are hard to get but at $499 many people can afford to have a disposible treadmill on their hands. If you paid $1400, you've just got bad luck!
A well thought out treadmill that can still use some refinement, but a better effort than most new models on the market. They couldn't make a foothold and are closing out the machines at more than a fire sale price.