I think HuK and other "top end" players on A-list teams like EG are the exception, not the rule, though - I suspect many in the "long tail" of players making $10-$40k/year in prize money aren't getting much in the way of salary, which makes StarCraft look like a much less appealing profession.

It'll be interesting seeing people change careers and give retrospective-style interviews in the coming years - right now in terms of salary and coaching and casting money there's a lot of speculation and little data.