1. They changed the date away from a long weekend
2. The GoHs are of no interest to me whatsoever
3. They have not updated their web site in more than a month (there is zero programming info and we're less than 2 weeks away)
4. They have not posted to their blog since June
And for out of towners, the room rate doesn't appear to be a discount, and it costs $10 a day for internet access.
On the other hand, the con is billed as a fund-raiser for a worthy cause:
SiliCon is a once-a-year Science Fiction Convention held by Siliconventions, Ltd. as a fundraising event for the Diabetes Society of Santa Clara Valley.
And it's only $45 at the door.