Ok, so I'm resubmitting my price suggestion so that the price range can be a bit more accurate.

I'll include all sales and current trades that I can find.

#1 (sold trade) http://www.tf2outpost.com/trade/11777215 3.5 bud b/o

Offers of:

Fireproof Diary + 2 keys ~ 1.6

Memory Leak Big Country - No price set

Opened new trade http://www.tf2outpost.com/trade/11832637 3.5 bud b/o still

Offers of:

Smoking Juju ~1.8 <<<< high end

http://www.tf2outpost.com/trade/11707815 - Trade where he sold it.

Scroll down and you'll see that he sold the ketche + a blizz samur-eye (~1.5) for 3 buds pure. That puts the ketche at around 1.5.

#2 (sold trade) http://www.tf2outpost.com/trade/11633527 2 pure b/o

Offers of:

Nuts n Bolts Nickel

S. F. Sniper (24), V. Luger (8), V. Mask (4), Filamental (1), G. Menpo (1.33 ref), 25 ref, 3 games. - 1 Bud + 17 or so in items w/ overpay

Bud + 5 keys

Bud + 10 keys

http://www.tf2outpost.com/trade/11852726 - the important trade. He sold the ketche + 1 bud + 12 keys (I actually didn't know about the +12 keys, if you need evidence look at my closed price suggestion). That puts the ketche at an astonishing 24-28 keys (outlier, not in range).

#3 (sold trade)

http://www.tf2outpost.com/trade/11919789 - Estelle Getty's comment. He sold it for 1.5 buds pure.

#4 (sold trade)

http://www.tf2outpost.com/trade/11753387

He accepted a stormy milkman (~1.4)

Actually sold for stormy snaggle (~1.7) <<< low end.

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Current Trades

http://www.tf2outpost.com/trade/11757855 No b/o, 1 week old

Offers of:

Memory Leak Big Country - no price set

Harvest Moon Ketche he adds 1 bud - puts ketche at ~1.5

http://www.tf2outpost.com/trade/11921123 - 3 pure b/o, 2 days old

No offers

http://www.tf2outpost.com/trade/11883961 - no b/o, 3 days old

Offer of:

Stormy Tippler's ~ 1.1

There's very little demand for this item. No trades are receiving offers of even 2 buds in pure or items. 1 has sold for ~1.1 buds, 2 have sold for 1.5 and another for 1.7. I'd prefer to use 1.5 as the low end but, those might be considered "quicksells". This range puts it around energy, misty skull, and hearts which is pretty optimal. Hopefully this is more accurate, if it's not, I'll do it again.