Buying used saves 20-40%. Price ranges I have seen: 10FT expandable $4,000-$7,000. 20FT $5,500-$11,000. 40FT premium $12,000-$20,000. Villas $18,000-$30,000. What to check: rust in corners, welds, roof seams, door frames. Surface rust is normal. Penetrating rust where you can push a screwdriver through is a dealbreaker. Water stains on ceilings or walls and musty smell mean hidden moisture. Doors should open and close smoothly. Binding means frame twist. Test all outlets and plumbing. Ask about modifications. Poorly cut openings compromise structural integrity. Ask for original papers and warranty transfer. Best places: Facebook Marketplace, Craigslist, container home groups on Facebook. We sometimes know previous buyers looking to sell. Email info@atvworldwide.com.