Smoking > Kill-A-Watt?

I don't think so.

Sale #1:

[url]http://www.tf2outpost.com/trade/24594506[/url] Sold for a Miami Nights L'Inspecteur (1.3 buds) with a B.M.O.C (8 keys)

1.3 x .9 = ~1.2

1.2 - .533333333 = ~.666 etc. buds

10 keys

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Sale #2:

[url]http://www.tf2outpost.com/trade/24569339[/url] Sold for a Green Confetti Bombing Run (13 keys*)

13 x .9 = ~12

12 keys

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Sale #3:

[url]http://backpack.tf/item/1539079304[/url] <---> [url]http://backpack.tf/item/1908872448[/url] Sold for an Orbiting Fire One-Man Army (.9 buds)

.9 x .9 = .81

.81 x 14.5 = ~12

12 keys

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Sale #4:

[url]http://backpack.tf/item/1416381058[/url] <--> [url]http://backpack.tf/item/1885133174[/url] Sold for a Strange Professional Killstreak Sniper Rifle (9.76 keys that day)

Outlier

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Minis:

Green Confetti Bombing Run:

[url]http://puu.sh/eVX0F/54f90987e0.png[/url] Sold for 16+ keys in items

[url]http://www.tf2outpost.com/trade/24566095[/url] B/O was 13 keys, using that