Actually I have done it many times in real life.  Sadly, the people I know in real life don't have the alts that I need.  I have done the same deal many times in real life.

If I am to escrow the BTCs, then there's not much of a risk.  I don't need more than 2 BTCs worth, so whoever will be the first will be the only one to take advantage of my offer.  I have over 100 BTCs myself, I am sponsored by a well known Poker Site named Betfair and have over half a million in tournament winnings in poker (which isn't my bread and butter).   I have many well known friends in the poker community that would vouch for me (which are known world wide).