The Steam Winter Sale started and lasts until Jan.2nd 2015.

 

X-Plane 10 is off 30%, now 38,49€ instead of 55€.

 

 

Seems to be the same in USD.

 

Check other Flight Simulations on Steam for price reductions as well!

 

(FSX is 4.99€ for the next 12-24 hours, Il-2 Battle of Stalingrad is now 38€ instead of 49€)

I have seen offers from different vendors, not limited in time for 38 EUR. Current Aerosoft offer is 37,49 EUR (time-limited until 21st of Dec).