Man, I faced this exact scenario with a sealed Chrono Trigger cart years ago. Here's the hard truth: if you never open it, you're just curating a plastic time capsule. What's the point of having a masterpiece you'll never experience? I opened mine and played through it, and that memory is priceless compared to any auction listing. Sure, it's lost some collector value, but gained infinite personal value. You really think future you will care more about a sealed box than the adventure you had?