Message to the mod that will be reviewing this:

Altogether, there is 1 sale at 7.3, 2 sales at 7.5, 2 sales at 7.8, and 2 sales at 8.5. The other suggestion claims that 8.5 is an outlier, but there are 2 sales that happened at 8.5, not 1 as claimed in the other suggestion (he missed the other sale).

Also, he undervalued the disco noble which original price is 6.1 with B/Os on outpost ranging from 6-7 buds. There is one for 5.5 buds in the market, but that particular one is gifted. Another thing to note that there is an active suggestion for the purple towering which prices the tower at 7 buds, making the the sale above involving the towering to be around 7.8-8.

In the other suggestion, 6.9 is definitely too low, when pure sales happening at 7.5 buds.

In addition, http://www.tf2outpost.com/trade/13914355 and http://i.imgur.com/Hugvlom.png?1 are both the same sale.

Lastly, Nick ( http://www.tf2outpost.com/trade/13914355 ) did not take 4 months to sell this at 7.5 buds as claimed by Procrastinator Python in his counter-suggestion. His trade was up for a long time asking for 8 pure or more. He sold it for 7.5 buds in less than a week after he changed his price (check the trade's comments). This is another reason why 7 shouldn't be in the range just yet as it low.

edit:

I talked to Nick from ( http://www.tf2outpost.com/trade/13914355 ) and this was what he said about his 4 months trade: http://i.imgur.com/AhLdflM.png

Never tell your password to anyone.

Nick: yo

grimdercell: hi mate

grimdercell: sorry for the random add, but I got a question to ask, I hope you don't mind

Nick: np whats your question

grimdercell: regarding the c.moon noble that you recently sold

grimdercell: what was the original price that you were looking for when you first opened the trade?

grimdercell: like, the initial B/O of your hat, 4 months ago

Nick: uh

Nick: im not sure

Nick: lol

grimdercell: but was it more than 8 buds?

Nick: yeah

Nick: but halloween effects are really hard to sell

Nick: so if you are looking to buy it and make profit off of it don't

grimdercell: nah, this is for a price suggestion on bp.tf

grimdercell: in the end, you quicksold it for around 7.5 buds right?

Nick: well

Nick: i declined a 9 pure offer

Nick: but you guys changedc the price lower

Nick: and i couldnt sell it

Nick: yes i sold it for 7.5 pure

grimdercell: I see

Nick: little more

Nick: he added some items

Nick: worth a lot

grimdercell: how long did it took you to sell it?

grimdercell: at 7.5?

Nick: not very long

Nick: i had it at 8

Nick: and i quit trading

Nick: i think i missed a lot of people wanting it for 8

Nick: and i didnt want it any more so i just quick sold it for 7.5

grimdercell: alright, that's all I need to know, thanks a lot

So yeah, 6.9 is definitely low.