Touching down at Madrid-Barajas Airport felt like arriving in a city made of both gold and memory. I wandered through streets steeped in centuries of history, under balconies draped with flowers and voices. I had my camera, a pair of reliable shoes, and enough euros to get by for a few days. But while walking past a shop window on Calle de Alcalá, I saw something unexpected: a refurbished iPhone displayed beside a polished gold ring and a TV set that looked brand new. Above the display, the name Cash Converters caught my eye. That’s when something clicked. I had my old tablet in my bag, barely usable anymore, just…