While I cannot attest to the accuracy of the following, they came to me in an email entitled "Going down in flames". You may find them funny/interesting:

Number of pre-sold tickets to Epic Game Fair: 27

Number of "walk ups" they are saying will attend magically: 30,000

Additionally--
There is a large black tie Epic Game Fair dinner.
Price for a table: $4,000
Number of tables sold: 12
Number of tables needed to be sold to break even: 55