With the sale here, people are finally realizing that this item needs a bump down. These are all the trades on Outpost, since there are no sales that are recorded that are in the current price range.

SELLERS:

http://www.tf2outpost.com/trade/12870082 - Selling for 8 keys. Not even a day old.

http://www.tf2outpost.com/trade/12565514 - Selling for 10 keys. Out of the current range.

http://www.tf2outpost.com/trade/12636382 - Selling for 9 keys. Unsold for a week (Hi Cleverpun)

http://www.tf2outpost.com/trade/11520858 - Selling for a set. Around ~17 keys in items. Selling for 18, making it sold around 9-10 keys. Unsold for a month.

http://www.tf2outpost.com/trade/12749896 - 4 days old and looking for offers. No offers yet.

SOLD:

http://www.tf2outpost.com/trade/12570510 - History can't track the newest owner since it was probably used, but there were 2 adds for 7 keys.

CLASSIFIEDS:

http://backpack.tf/classifieds/search/234/600/0 - One seller for 9 keys (Hello again Cleverpun).

Conclusion: Not even a page of sellers on Outpost, but it definitely needs a bump down. Sellers at 9-10 keys are having trouble and there are sellers willing to go below. Please find counterproof if you do actually find any. Thanks for your consideration. (P. S. Did this on mobile so sorry for any mistakes.)