Quoted from andrewket:
Because he has humility, and understands that it’s a team effort. Without the licensed theme it would have garnished a lot of attention, but I don’t think it would have sold out in hours.
If the theme had been announced as Oktoberfest or hot wheels, there is no way Spooky would have sold out in 4 hours. Conversely, had Stern announced Rick and Morty and without showing us anything, may have sold 750 LE’s in 4 hours.
So probably a combination of theme, designer and manufacturer make R&M SO HOT! Other significant factors were price, anticipated quality, limited quantity and general market timing. Change any of the criteria and you’d get a different result.
At the end of the day, Team Spooky with Scott, Eric and Bowen will be making the best version.