Market Demand: Retro pricing spikes with trends (e.g., TikTok, new Pokémon releases).
How to Get an Accurate Quote
GameStop Trade Center (Website/App): Search "Game Boy [Model]" for an instant online estimate (store credit).
Visit a Store: Associate tests hardware (screen, buttons, audio, cart read) and gives final offer.
Reminder: GameStop pays in **store credit (higher value) or cash (lower ~20% less)**. For cash, selling directly on eBay/Swap meets usually nets significantly more.