I may be wrong, but I think that the Chaos Packs will sell out VERY, VERY fast.
People already saw how the old packs increased in value after a while; it's not difficult to think that there are lots of investors with their pockets full of money waiting to buy the packs to sit on them for 6-12 months and resell for a hefty profit.
Oh yea they will go quick - less than 48hrs is my guess, likely even sooner than that though. I feel it.