Shopping for a used RV can feel like hunting for a cabin on wheels, equal parts freedom and fine print. This guide translates jargon into plain talk and shows you where hidden costs like tires, seals, and storage really live. You’ll learn how to inspect roofs and frames, read prices with context, and negotiate with confidence. We’ll weigh fuel economy, maintenance timelines, and insurance so surprises don’t hijack your budget. If road trips are calling, start here before you turn the key.