The thief's theme - play me at night, they won't act right.

The fiend of hip-hop has got me stuck like a crackpipe.

Less than a page on Outpost.

Buyers at 5.55 ref

http://www.tf2outpost.com/trade/27389060 - 1 month

Classifieds at the time of posing:

http://backpack.tf/classifieds?item=Festive+Sandvich&quality=6&tradable=1&craftable=1 -> http://i.imgur.com/zT3NceT.png

x1 at 5.66 ref

x1 at 5.55 ref (same as the Outpost buyer)

x3 at 5 ref

Conclusion:

No valid sellers anywhere near the current price. SCM supports a raise. I'm guessing it would be safe to disregard the 3 Classified buyers rule in this case; taking 5.66 ref as the new price.

Additional/Supportive and Counter Evidence is always appreciated.

Discovery out ヽ༼ຈل͜ຈ༽ﾉ