Sorry to counter your 10 ref flat suggestion 'dick husky', but a range is still needed on these;

Classies at 8 a.m. July 20;

http://s3.postimg.org/r0msuxk9v/proof_crate_5sellerat8ref_8am.jpg

Classies at 1p.m. July 20;

http://s24.postimg.org/bylnxjikl/proof_crate_6sellerat8ref_1pm.jpg (note some new sellers at 8, as well sellers at 8 sold, and valid buyers at 8 + 8.11)

Sooo... taking 8 ref out of the equation as being a quicksell.

Sellers at 9 ref and above;

http://s18.postimg.org/uxjorh4l5/proof_crate_4sellerat9ref_1pm.jpg - 4@9 ref (1 at 1 day+)

http://s30.postimg.org/3tyt9dsz5/proof_crate_10sellerat10ref_1pm.jpg - 10@10 ref (2 at 1 day+)

http://s15.postimg.org/8n2as1323/proof_crate_pg3classies.jpg - page 3 of classies early pm July 20th 1more@10 ref, 4@11 ref, 4@12 ref (a couple 1 day old +)

Pages 4-8 are filled with 13-15 refined sellers young and old alike

http://backpack.tf/classifieds?item=The%20Powerhouse%20Weapons%20Case&quality=6&tradable=1&craftable=1&numeric=crate&comparison=eq&value=94&page=4

Unsolds;

http://www.tf2outpost.com/trade/26480226 - 12 refined 5 days old

http://www.tf2outpost.com/trade/26480202 - 12 refined 5 days old

http://www.tf2outpost.com/trade/26485538 - 11 refined for 1 or current bp.tf price if buying both (?) 5 days old

http://www.tf2outpost.com/trade/26486155 - 10 refined 4 days old

http://www.tf2outpost.com/trade/26493608 - 4 days old apparently for concealed killer and powerhouse for a key

http://www.tf2outpost.com/trade/26493922 - 13.55 refined 4 days old

http://www.tf2outpost.com/trade/26503922 - 12.55 refined 4 days old

http://www.tf2outpost.com/trade/26513318 - 8 ref in cosmetics minimum 2 days old

http://www.tf2outpost.com/trade/26514943 - 14 ref 2 days old

... and so on ....

SCM market reflects these backpack sales ranges, just for additional support

http://steamcommunity.com/market/listings/440/The%20Powerhouse%20Weapons%20Case

As I added to 'dick husky' price suggestion, here is proof of bought at under current range. I bought one at 7.66 yesterday, advertising I wa buying quicksell powerhouse for pure. Advertised buying 2 for 1 key (7.33x1.4 quickbuy =~10 ref)

http://s24.postimg.org/8w972augl/proof_crate2.jpg

So, If i take 8 refined and less out of the equation and since sellers at 12 refined are getting up there in terms of days for sale.... I come up with 9 refined to 12 refined because anything over 12 refined is not selling at all because of SCM prices (which hover right around that .74 key mark). The midpoint of this is about 10 refined, which is where the MAJORITY of cases are being listed and advertised at. As well, most SCM sellers will get about that in actual cash from there SCM sell. Seems to fit quite well and allows some wiggle room for the obvious fluxuations that are bound to happen within the next couple days.

Comments, questions or concerns, leave a comment. I welcome any suggestions as to sales, sellers, solds or towards a better fitting range if you have constructive proof.

Thanks

Really wasn't going to sugget on these again, because I spent too much time setting the first few pricing ranges ... But after seeing other suggestions that are out of whack I guess it's still my baby :)