What do you expect/hope Nexon throws in with Big Bang?

Typical users aren't where Nexon profits. They've said they make 80% from 10 to 20% of the population, which is exactly what you just described.
They don't want to jeapordize that already marginal portion of their population that makes up the majority of their profit.

Kinda a tautology, there... their items are designed for the atypical users (who do play 4+ hours in a row), so those users are the ones buying them, so that becomes their customer base.