Meh.

Classifieds at the time of suggesting.

http://imgur.com/pzNbc5E Page 1

http://imgur.com/oorMprh Page 2

http://imgur.com/4BkWJ3E Page 3

Sellers.

http://www.tf2outpost.com/trade/25307935 6 Refined (4 Months, Bot)

http://www.tf2outpost.com/trade/26057852 6 Refined (2 Months, Bot)

http://www.tf2outpost.com/trade/26671412 6 Refined (21 Hours, Not so young)

http://www.tf2outpost.com/trade/26511092 6 Refined (2 Weeks, Unbumped for 1 Day, still valid.)

Unsolds.

http://www.tf2outpost.com/trade/26543352 7 Refined (1 Week, Unbumped for 1 Day, Invalid)

http://www.tf2outpost.com/trade/26446654 7 Refined (3 Weeks)

http://www.tf2outpost.com/trade/26611385 7 Refined (1 Week)

From the looks of the market, 6 Refined seems to be more common than 7 Refined.