Christmas hype only two days after the end of Halloween, god... Conservative rise. Got the idea thanks to Puddington from http://forums.backpack.tf/index.php?/topic/5596-psa-non-unusual-price-update-request-thread/page-15

Classifieds (As of 5:00 PM EST today):

The lowest even on the classifieds is 2 keys http://prntscr.com/52frmo

Not even a single current sellers for 1.5 on Outpost! Very few non KS and recently bumped as well.

Recent sales:

http://www.tf2outpost.com/trade/23482195 Sold INSTANTLY at current Backpack price, proving that the current price is just a quicksale.

http://www.tf2outpost.com/trade/23468099 Sold without a bump at 1.6 keys

http://puu.sh/ckPA1/420ead1d93.png Sold quick at 2 keys, proof from Puddington

http://www.tf2outpost.com/trade/23475924 2 keys

http://www.tf2outpost.com/trade/23431141 2 keys

http://www.tf2outpost.com/trade/23408932 2 keys

http://www.tf2outpost.com/trade/23484723 2 keys, thought no new owner in item history, presumed sold as it was grayed out of the trade and is no longer in the sellers backpack.

http://www.tf2outpost.com/trade/23447441 Sold 1, thought renamed at 2.5 keys, calling keys 10 ref, minus the price of a name tag (3.33), valuing sales at 2 key 1.66 ref, rounding to 2.2 keys, thought I can't count this in the price because it is renamed, just putting this here for emphasis of how it needs a rise.

http://www.tf2outpost.com/trade/23480968 4 keys! Counting this as an outlier thought due to all the sales for less.

Despite the few sales above and below, 2 keys is definitely the most common selling point.