6 months old price!

Sale 1:

Sold for Professional Australium Rocket Launcher* = 69 keys

http://www.tf2outpost.com/trade/28087017

http://backpack.tf/profiles/76561198031371895#!/compare/1461715200/1461801600

http://backpack.tf/profiles/76561198136097697#!/compare/1461715200/1461801600

Mini-suggestion for Professional Australium Rocket Launcher*:

Classifieds:

Highest buyer at 67 keys and lowest seller at 70 keys; taking a value of ~68.5 keys.

http://i.imgur.com/TX0adBK.png

SCM:

Average sales this week have been around $195-200 which equivalates to ~69 keys after tax.

http://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Australium%20Rocket%20Launcher

~Seems to be around the 69 key mark. May be slightly off (give or take) but this is certainly better than the outdated price.

Conclusion:

One valid sale at 69 keys. Taking a final flat price of 69 keys.

Feel free to support/counter my suggestion!