Call me old fashioned, but what's the point of smart luggage? What's wrong with the dumb luggage that we've been using for decades? I travel with an army surpl

Call me old fashioned, but what's the point of smart luggage? What's wrong with the dumb luggage that we've been using for decades? I travel with an army surplus duffel bag, it cost me $20. It's probably 40 years old, and will last another 40 years with any luck. It's so convenient that it's literally the only luggage I brought with me (apart from my carry on) when I moved countries. It also has the advantage that it's unlikely to be stolen, since it looks so cheap. I do understand why people want nicer suitcases with wheels and hard exteriors. But do you really need a suitcase that will follow you? It's just extra weight that you could use for actual luggage.