OK, back to the subject at hand.
There's no way of determining what expenses went into making that $100 - $200K. As someone already said, this poll is about income, not profits. The team leaders at my office talk about GCI all the time when introducing a speaker to an audience of mostly newbies. But I know about the thousands those speakers invest in monthly mailings, free gifts, calendars etc. I'm sure their net income, which truly is non of my business, would paint a very different picture.