Oh god, where to start...

No proof

Has one in his backpack

Trying to raise the price so he can sell higher

http://www.tf2outpost.com/trade/6911332 first link on outpost search for this hat is selling for 3 keys, downvote

And just for precationary measures:

[url]http://www.tf2outpost.com/trade/6780111[/url] sold for 8 ref

[url]http://www.tf2outpost.com/trade/6679250[/url] sold for 3 keys

[url]http://www.tf2outpost.com/trade/6719057[/url] sold for 2 keys 1 ref

[url]http://www.tf2outpost.com/trade/6493641[/url] sold for 3 keys

[url]http://www.tf2outpost.com/trade/6498370[/url] sold for 3 keys

[url]http://www.tf2outpost.com/trade/6695916[/url] sold for backpack.tf current price

Thanks for free rep

No, just... no.

First off, you claim that you've had someone offer you 10 keys for this item; if that is the case, then where is the proof of this offer? In fact, where is the proof that there are people selling/buying this for your suggested price, and successfully selling/ buying at it? Because you clearly have no proof showing that this is true, whereas Mr. Meowvin have provided plenty of proof of the contrary. Second, prices here on this site aren't set for personal convenience; they are set based on the current market price of the item in question, based on successful trades. You wanting to change the price to 10 keys so one guy you "claim" offered you said price won't feel ripped off is not a sound nor good enough reason to change the current price.

Quite frankly, this suggestion reeks of self profit and manipulation, and you suggesting such a high range with no proof that it is justified just solidifies this even more. This is a definite downvote from me.

Take the keys and run.