Folk’s it look’s like San Diego Comic Con 2010 is going to be the biggest yet. Already both options of 4 day passes (with preview night & without preview night) have sold out. This is the fastest I have seen 4 day passes go. That means if you slacked on buying one of those two options you are going to have to settle with one day passes.
My source that works with Comic Con has informed me that 1 day passes will go on sale December 15th. Pricing has not been announced yet, but Friday and Saturday badges will cost you the most and will sell out the fastest. Even if you are unsure about going I suggest buying all three or four days and you can also request a refund if something comes up or you don’t plan on going.
If you happen to miss out on these your best bet for scoring passes to Comic Con are the eBay sales they hold once all refunds have been processed and those sell out faster then Sonic The Hedgehog collecting rings downhill.