"If I put 11 I feared that maybe people wouldn't want it to go that low."

Uh you and some other guy did...

Anyway, there is a seller at 11.33

http://www.tf2outpost.com/trade/27914725 - 1 day, selling 2

But idk, there are also sellers at 11 ref on the Classifieds (which includes you), so I'm gonna remain neutral for now.

Some unsolds to help your case:

12 ref

http://www.tf2outpost.com/trade/27915245 - 1 day, "backpack.tf prices"

http://www.tf2outpost.com/trade/27882248 - 1 week

http://www.tf2outpost.com/trade/27888679 - 1 week

http://www.tf2outpost.com/trade/27893955 - 6 days, "backpack.tf prices"

http://www.tf2outpost.com/trade/27908013 - 3 days, "backpack.tf prices"

http://www.tf2outpost.com/trade/27739424 - 1 month, "backpack.tf prices"

11.55 ref

http://www.tf2outpost.com/trade/27888134 - 1 week