I only have experience with one store, which happens to be a manufacturer's outlet store, and all previous year models are 25% off regardless if it's Jan or or November. Anything older than the previous year is 25% to 40% off.
Not sure how it works with Trek, but but if you are looking for a fire sale, you might be waiting until Jan 2013. Somehow I doubt they would have any left.
Then again, that shop I visited this week had a crap ton of one 2010 model hybrid in 19" even. These currently go for 25% off, but come Jan, they could go down some more.
They had a few 2009 bikes which were pretty sweet for the discounted price too. Think full LX (including hubs)/Deore crank, Avid 7 brakes, Mavic rims, for way under $1k.
Last edited by jsdavis; 11-05-11 at 09:59 PM.