Yeah. I ended up with an eight letter @gmail.com because I dithered, but if I'd signed up by any means necessary when I'd first heard of it, I would've gotten a four letter one.
I bartered on gmailswap.com, sending someone a bicentennial 50¢ US coin in exchange for an invite.
The envelope made it to the recipient, but the coin fell out in transit because I was young and had no idea how to mail coinage. They graciously gave me the invite anyway.