Quoted from kaneda:
People are so funny. $5,300 i'm interested, but $6,300 I'm out. Pahhhhhhhhlease. Let's face it. If it's sweet, NIB and awesome, everyone who is considering one will be in. Stern always wins out because of one simple fact, "Life is short and what else you gonna buy NIB?"
It's a huge difference and would drastically affect sales IMO. I would think about it at $5300 but wouldn't at 6K+. I think there are others that feel the same.
If I really wanted a SM I'd go pick up a pristine older version for around $5K instead of pay 6K+ for a NIB comic. NIB pins are a gamble especially with the current quality control at Stern. HUO at least you see what you get before dropping a ton of money on it.