Yup. I'm a big fan of used bikes. I've owned dozens of bikes. Maybe a hundred or more have slipped through my hands, though I didn't intend to keep many of them. In the last ten years, I've bought only one new bike, and I don't foresee doing it again for another while. A used bike might be ready to ride, and it might need major changes, but it's a great starting point. Some are dirt cheap, when you get lucky.