Every 2.66 offer I have seen has been declined, but they are readily available at 3 ref. I checked 3 pages of buyers and only found 2.33 and under quickbuyers, except for a few.

SOLD/WILLING BUYERS:

http://www.tf2outpost.com/trade/9173573 3 ref

http://www.tf2outpost.com/trade/9100144 3 ref

http://www.tf2outpost.com/trade/9046863 3.33 (called it a "strange attendant")

http://www.tf2outpost.com/trade/9184546 1 key

UNSOLD:

http://www.tf2outpost.com/trade/9116380 3.33 (3 days)

OFFERS:

http://www.tf2outpost.com/trade/8999980 Dirty Appirition's Aspect (1 key)

http://www.tf2outpost.com/trade/8969429 Dethkapp (3-3.66 ref), another offer of 3 ref

http://www.tf2outpost.com/trade/8502413 3 ref

http://www.tf2outpost.com/trade/8900095 3 ref

http://www.tf2outpost.com/trade/9140023 3 ref (found it elsewhere)

http://www.tf2outpost.com/trade/9061552 3 ref, 2.66 and 2.88 declined

http://www.tf2outpost.com/trade/9137411 Napper + 1 ref, changed to 3 ref pure

http://www.tf2outpost.com/trade/9198756 Headwarmer + .66 (3 ref)

http://www.tf2outpost.com/trade/9148248 ToD Ticket + 1.44 (~3 ref), offers of 2.66

http://www.tf2outpost.com/trade/8588419 2.66 declined

http://www.tf2outpost.com/trade/9155367 2.66 declined

STILL NEW:

http://www.tf2outpost.com/trade/9196182 3 ref (Hi Woifi)

http://www.tf2outpost.com/trade/9192575 3 ref

http://www.tf2outpost.com/trade/9207523 3 ref

http://www.tf2outpost.com/trade/9203650 3 ref

http://www.tf2outpost.com/trade/9181994 3 ref

http://www.tf2outpost.com/trade/9200720 3 ref

http://www.tf2outpost.com/trade/9186964 3 ref

http://www.tf2outpost.com/trade/9197854 3.33

http://www.tf2outpost.com/trade/9205941 3.66

http://www.tf2outpost.com/trade/9201630 3.66

http://www.tf2outpost.com/trade/9196319 3.66

BUYERS:

BOUGHT:

http://www.tf2outpost.com/trade/9051363 3 ref (was willing if the guy had change for a key)

OFFERS:

http://www.tf2outpost.com/trade/8972701 Best offer over a week is 3 ref

STILL NEW:

http://www.tf2outpost.com/trade/9207620 Backpack.tf prices