KoDoRiN : "Clean and dirty ones are practically the same. This is to prevent people thinking one is worth more than the other when really they're the same with the exact same purpose.."

Solds above 2 -

http://www.tf2outpost.com/trade/17719996 - 2.11 (instant sold)

http://www.tf2outpost.com/trade/17693488 - 2.22

http://www.tf2outpost.com/trade/17674278 - 2.22

http://www.tf2outpost.com/trade/17721248 - 2.33

http://www.tf2outpost.com/trade/17526314 - 2.33

http://www.tf2outpost.com/trade/17700488 - 2.66

http://www.tf2outpost.com/trade/17695283 - 2.66

http://www.tf2outpost.com/trade/17683703 - 2.77

http://www.tf2outpost.com/trade/17709055 - 3.00(?)

Buyers -

http://www.tf2outpost.com/trade/17714776 - 3.00+ (?)

http://www.tf2outpost.com/trade/17708336 - 2.11 (bot)

http://www.tf2outpost.com/trade/17722283 - 2.11

http://www.tf2outpost.com/trade/17708546 - 2.00

http://www.tf2outpost.com/trade/17700444 - 2.00

http://www.tf2outpost.com/trade/17692931 - 2.00

http://www.tf2outpost.com/trade/17682387 - 2.00

http://www.tf2outpost.com/trade/17677690 - 2.00

http://www.tf2outpost.com/trade/17675561 - 2.00

http://www.tf2outpost.com/trade/17675142 - 2.00

http://www.tf2outpost.com/trade/17723743 - 2.00

With the amount of 2.00 buyers and quite some solds/most sellers above 2.00 I think this needs a range. A lot of name/desc tag combined solds & sellers so my proof might not be the best. But better have a range than 2 clean imo.