With 30 years of reselling below my belt, I’m the go-to man when pals want a fast appraisal. And over time I’ve observed a recurring phenomenon: The classic gadgets most individuals think about invaluable often aren’t, and the issues they wish to toss are sometimes sizzling collectibles. Right here’s why: Many people get our concept of what’s invaluable from our dad and mom. However markets change, and new collectors have…