I normally ride a bike on a smart trainer during the winter (when not riding outside), but am planning to buy a Concept2 Erg before next winter. It should be gr

I normally ride a bike on a smart trainer during the winter (when not riding outside), but am planning to buy a Concept2 Erg before next winter. It should be great for core and back strength, something cycling -- especially indoor cycling -- benefits greatly from but just doesn't do. It's amazing to me just how (relatively) cheap the Concept2 is. Solid, well made, and reliable.