I know you can count.

http://puu.sh/3C2nV.jpg

-bought for 1.8 buds (about)

http://www.tf2outpost.com/trade/11810554

SOLD: Orbit Fire Spartan (1.4) + 10 keys = base offer of 1.8 buds

http://www.tf2outpost.com/trade/11592312

SOLD: 1 bud, at least 7 keys, Filamental (still unknown)

http://www.tf2outpost.com/trade/11259958

-2 buds

-$90 (2.1)

http://www.tf2outpost.com/trade/11259033

SOLD: Stormy Pot (1.4), Orbit Fire Base Metal Billycock (1.2) = 2.6

http://www.tf2outpost.com/trade/11763920

-past offer of 2 buds, retracted

-28 keys, Corruption EA (12 keys), TS UC Voodoo Juju (11 keys) = 2.3 buds

-Blizzard Drill Hat (1.5, outdated) + 1 bud = lower than 2.5 buds

-1.7 buds

-Steaming Towering Pillar (1.8 buds)

-1 bud, 13 keys, G El Jefe = 1.8 buds

-$80 (1.9 buds)

http://www.tf2outpost.com/trade/11801328

-1.7 buds

High end will not be 2.4 because that was the reason why the other suggestion got closed.

Personally, I got mine for over 2 buds.

Buyouts of 2 buds and sparse offers above 2 buds indicates a VERY small raise of 2.1 buds