As of 2026, the Cessna 172 remains the highest for value rentention! 1. Legacy Models (1970s M, N, P): Trading between $130,000 – $185,000. Why: High demand from flight schools wanting simple, low-maintenance time builders. 2. 6-pack Steam Gauge (1997–2004 R & S): Trading between $250,000 – $310,000. Why: Newer airframes (corrosion-proofed) without the complexity of early glass cockpits. 3. G1000 Glass Cockpit (2005+ 172S): Trading between $390,000 – $580,000. Why: Essential for modern Part 141 schools. Prices spike for units with the NXi upgrade and WAAS. Don't just rely on Vref or Aircraft Bluebook. Check "sold" listings on sites like Trade-A-Plane (https://www.trade-a-plane.com). Asking prices are often 10–15% higher than the final transaction price.