When I started in the hobby in the early 2000's, very few people were buying NIB pins. The hobby was more about restoration. Since then, a surprising number of "new" collectors (less than a few years) are jumping in with NIB purchases. Is it a sign of a stronger U.S. economy, or people just tired of earning 1/2% on their savings? Or did BBB turn us all into speculators?
To answer the OP's question: I paid 4600 shipped for my MET Pro. So a 30% increase means $6000, and there's no way I'd pay that right now. OTOH, if I knew my losses were capped to around $1000 over 4 years, I might consider it for a "dream title" that was well-executed.