4 month old price

http://www.tf2outpost.com/trade/11597867 offer of 46 keys [2.1 buds] (rejected)

http://www.tf2outpost.com/trade/10944699 sold for 2 buds 10 keys and 6 in items (2.7 buds)

http://www.tf2outpost.com/trade/12269169 offer of 2.5 buds gathering

http://www.tf2outpost.com/trade/12269169 offer of a Circling Peace Sign Tossle Cap (worth 2.2-2.5 buds) rejected

http://www.tf2outpost.com/trade/12269169 offer of 55 keys (2.5 buds) rejected then an offer of 60 keys (2.7 buds) rejected (owner wants 3 buds)

http://www.tf2outpost.com/trade/11576554 seems to have been sold for his b/o of 2.2 buds

Not sure if its a good range, comment if you believe I need to add/fix something :D