Price of the Salvaged Crate #50 should increase slightly. Evidence/Proof posted below. I will close this suggestion if there are too many disagreements.

Backpack.tf Classifieds

http://backpack.tf/classifieds/search/id/52000ecf4bd7b8f825000017

None for 5 Keys and cheapest available is at 6 Keys

Some Trade on Outpost

Some Offers and Sellers

http://www.tf2outpost.com/trade/15456200 - Offer of Approx. 6.43 Keys?, 4 Days ago

http://www.tf2outpost.com/trade/14886702 - Sold 3 for 6 Keys?

http://www.tf2outpost.com/trade/14828783 - Offer of 6 Keys, 1 Week ago and 5 Keys, 1 Day ago

http://www.tf2outpost.com/trade/15246308 - Offer of 6 Keys, 3 Weeks ago and 5 Keys, 1 Day ago

http://www.tf2outpost.com/trade/15453553 - Interested buyer for Approx. 5.5 Keys, 9 Hours ago and 1 Week ago

http://www.tf2outpost.com/trade/15234292 - Offer of Approx. 5.5 Keys, 4 Days ago

http://www.tf2outpost.com/trade/14340261 - Offer of 5.5 Keys, 1 Week ago

http://www.tf2outpost.com/trade/14219475 - Offer of 5.5 Keys, 1 Week ago

http://www.tf2outpost.com/trade/14031537 - Offer of 5.5 Keys, 1 Week ago

http://www.tf2outpost.com/trade/13077016 - Offer of 5.5 Keys, 1 Week ago

http://www.tf2outpost.com/trade/15984667 - Offer of Approx. 5.3 Keys, 1 Day ago and 5 Keys, 3 Days ago

http://www.tf2outpost.com/trade/14667768 - Offer of 32 Refined (Approx. 5.14 Keys), 5 Days ago

http://www.tf2outpost.com/trade/15975263 - Sold for 5 Keys in less than 3 Days

http://www.tf2outpost.com/trade/15988467 - Offer of 5 Keys, 2 Days ago

Some Buyers

http://www.tf2outpost.com/trade/15886598 - 6 Keys

http://www.tf2outpost.com/trade/15605624 - Approx. 5.79 Keys?

http://www.tf2outpost.com/trade/15979094 - 5 Keys and 3 Refined (Approx. 5.5 Keys)

http://www.tf2outpost.com/trade/14060129 - 5 Keys and 1 Refined (Approx. 5.16 Keys)

http://www.tf2outpost.com/trade/15985368 - 5 Keys and 0.66 Refined (Approx. 5.11 Keys) with no interested sellers, 2 Days ago

http://www.tf2outpost.com/trade/15677707 - 5 Keys with no interested sellers, 2 Weeks ago

http://www.tf2outpost.com/trade/15726580 - 5 Keys with no interested sellers, 1 Week ago

http://www.tf2outpost.com/trade/15842912 - 5 Keys with no interested sellers, 1 Week ago

http://www.tf2outpost.com/trade/15876271 - 5 Keys with no interested sellers, 6 Days ago

http://www.tf2outpost.com/trade/15876980 - 5 Keys with no interested sellers, 6 Days ago

http://www.tf2outpost.com/trade/15919326 - 5 Keys with no interested sellers, 5 Days ago

http://www.tf2outpost.com/trade/15994483 - 5 Keys with no interested sellers, 1 Day ago

http://www.tf2outpost.com/trade/14827779 - 5 Keys with no interested sellers

http://www.tf2outpost.com/trade/15513399 - 5 Keys with no interested sellers

http://www.tf2outpost.com/trade/14515974 - 5 Keys

http://www.tf2outpost.com/trade/11984788 - 5 Keys

http://www.tf2outpost.com/trade/10695182 - 5 Keys

http://www.tf2outpost.com/trade/15391963 - 5 Keys with at least one interested seller in the past week