Time is money. Money is time. Clients pay %markups for instant availability, for anonymity.
Let me give you two possible examples:
First example:
Let's assume you wanted to try to play the market, say $50k a month. (Pocket change for any real market wizards.) You didn't want to keep large amounts of cash or btc tied up, but to be able to jump in/out of the market at will, without leaving IRS-related ripples.
Today, that's impossible.
-- Sell BTC today, and tell me how long it is till you have $real-money$ in your hand? 3 days? 5 days?
-- Have cash in your hand? How long till you get BTC? 48 hours? more?
-- every > $10k transaction is entitled to fairly high levels of visibility.
What kind of percentages would someone be willing to pay to reduce that to 4 hours? 2hours? Is it worth a 10% markup?
In the financial trading world, a company called "Spread Networks" spent $millions$ of $usd$ to build a new fiber route between Chicago and New York, just to shave a few MS off that path... and the financial houses paid happily just for a few milliseconds of advantage. (http://www.forbes.com/forbes/2010/0927/outfront-netscape-jim-barksdale-daniel-spivey-wall-street-speed-war.html)
Second example:
Let's assume you are moving "product X" from one part of the world to another. You don't want to leave a money trail. You need someone on each end willing to move $$$/BTC in large amounts. you don't care at ALL about the 10% ding. You don't care what the market price is, because you're moving in/out of btc.
I'm not sure why these concepts are either so hard to understand or so difficult to believe. I'm not saying it's impossible that bts&t was a scam. I'm not saying it's impossible that it was a ponzi. I'm not saying Pirateat40 is a standup guy who will return all the money.
I'm saying, just because you don't understand it, doesn't make it impossible.