Only a few of these hats on the market, and a ton of C/O's over 2 buds.

http://www.tf2outpost.com/trade/10479463 has offers of a circling hearts Marauder (over 2.5 buds even with unusual overpay, accounts for the high end of range) and a smoking Grimme+ Peace Private Eye (around 2.5 with overpay.)

http://www.tf2outpost.com/trade/9604971 has lots of C/O's over 2 buds, including 2 buds 6 keys and S. F. Rocket+ S. Sapper.

http://www.tf2outpost.com/trade/10342965 has C/O's of a Stormy Hallmark, the same offer of Smoking Grimme and Peace Eye, and assorted other offers around or above 2 buds, all rejected.

http://www.tf2outpost.com/trade/9599415 has an offer of a GIFTED BUBBLING TC (an outlier, to be sure) and multiple others at or above 2 buds.

http://www.tf2outpost.com/trade/10479463 has offers of 2 buds plus minor sweets, rejected.

http://www.tf2outpost.com/trade/10162592 has a lot of offers at or over 2 buds, all rejected yet again.

All in all, the sheer number of offers at or above 2 buds displays a need for a bump in the lower end of the price, and the few higher offers show that the high end needs to be moved up a bit.

(Sorry for the repost, I put the wrong range accidentally.)