We have a Nautilus U616 upright bike for sale. We got it to rehab a knee injury, which is mostly resolved at this point. This bike was $600 new with tax.
It's surprisingly fun, there are Nautilus apps where you can bike around Utah and such. Easy to zone out and just follow along when it's rainy and you can't go outside. Personally I just like watching Netflix on my phone and it's surprisingly easy to get a 20 or 30 minute ride in before work, especially useful when it's raining outside.
It has bluetooth connectivity if you're into tracking your time and distance, fine-control of resistance, heart rate monitor built-in (it's as accurate as my polar H10 chest monitor), has a built-in fan, USB for charging, water bottle holder, all that stuff. Apparently it has speakers but I never tried them.
Perfect for keeping discipline with your New Year's resolutions during the rainy season, and by May you'll be in tip top shape!
There's a small scratch (just below the U616 logo, see picture). Just 10 miles ago installed a service kit as part of regular maintenance (it had a replacement for the servo motor that changes gears, and a magnet to control resistance). Come try it out!
We have cleared out the memory and it's ready for a new user!