Crappy crates. Woop

My proof

http://www.tf2outpost.com/trade/25160368 (2 weeks at 2 keys 7 ref (2.42 keys)

http://www.tf2outpost.com/trade/25280074 (2 of them in stock 2.5 keys, 2 days)

http://www.tf2outpost.com/trade/25011375 (2.5 keys, 3 weeks)

http://www.tf2outpost.com/trade/25250462 (2 keys, 6 days)

http://www.tf2outpost.com/trade/24608538 (2 keys, 1 month)

http://www.tf2outpost.com/trade/25200547 (2 keys, 1 week)

http://www.tf2outpost.com/trade/24724125 (1 month @ 2.5 keys)

http://www.tf2outpost.com/trade/25258270 (5 days @ 2.5 keys)

http://www.tf2outpost.com/trade/25071975 (3 weeks @ 2 keys, badly bumped)

This Proof provided by [b.l.o.s]Happyninjasword

http://www.tf2outpost.com/trade/25285059 - 2.00

http://www.tf2outpost.com/trade/25316195 - 2.18

http://www.tf2outpost.com/trade/25303305 - 2.42

Classifieds Proof

http://gyazo.com/24579a17dd89a3ea0659909a480782ca

2 at 2 keys

1 at 2.18 (2 keys 3 ref)

2 at 2.3 keys

1 at 2.36 keys

5 at 2.42 keys

Overall, I think this proof is effective enough to take 2.5 out of the range completely.