Whatever the reason, I am glad I got the exclusive.
I am not a conspiracy theorist, so I don't think there is anything shady about it. When they put something up for preorder, they know how many they are putting up, and they likely know they will end up getting more, but you always undersell. If you THINK you might 500 EX units, but only KNOW you are getting 300, you put up 300, not 500. You put up the other 200 when you KNOW for sure Hot Toys will deliver them. Also, when it comes to preorders, they base production levels in part on preorder sales. So they put up a number, and depending on how long those take to sell, gauge how whether it's worth upping to production line. Did those sales constitute 90% of the people who will buy? Or 50%? If it's 50, you make more. If it's 90, not worth it. There's so much that goes into deciding all of these things, that being intentionally shady, obtuse and playing mind games with customers doesn't need to be one of the headaches.
It's like with BBTS. They'll put something up for preorder, it will sell out, then a few days later they will add many more units. People then assume that BBTS is messing with them, putting up less than they know they have just to cause artificial hysteria. Well, that's backwards logic and really a symptom of people wanting to foist their internalized affectation of a situation as a direct result of a specific intention to cause that reaction. That logic doesn't follow. Just because you have a certain reaction something, doesn't mean the thing that caused that reaction did so with the specific intent of causing that reaction. This is a VERY common human flaw. Leads to most interpersonal misunderstandings and in this way, extends to the business-consumer relationship. The reality is MORE likely, and I like Occam's Razor in these sorts of instances, is that BBTS orders X amount of units from the manufacturer, then if those sell out quickly, decide "hey, we can up our order and not sit on all this stock", so they call up the manufacturer, add more units to their purchase, then add those units to their preorder list. Looks like some shady crap to the consumer who is all in a fuss, when really it's just the business trying to maximize their profit by giving the consumer what they want, not dangling it like a carrot.
/rant