I can't find anyone on tf2outpost selling for less than 0.33 this following the update's release. Probably because Valve announced these will become "rare drops" after June 3, like the salvaged crates I guess...

0.33 sellers:

http://www.tf2outpost.com/trade/10874889

http://www.tf2outpost.com/trade/10876262

http://www.tf2outpost.com/trade/10875032

0.44 sellers:

http://www.tf2outpost.com/trade/10439634

http://www.tf2outpost.com/trade/10876125

These crates are also valuable because:

1. They have exclusive unusual effects

2. They can still unbox the regular unusuals

3. They give nothing but hats. So no risk of getting a cancer strange... the worst you can do is a craft hat, and for the time being these hats are worth much more than a craft hat.

If you can find anyone selling at less than 0.33, provide counter-proof and vote against this suggestion!