Marketplace
It's strange that no one has posted this in the last few days, but the current sale at the Humble Store which ends in a day, has Gone Home for $6.80, which is cheaper than the next best I've been able to search ($9.99 on steam 50% off sale).
Other interesting things include Rogue Legacy, Papers Please, Don't Starve, FTL for $4.99 each, or Guacamelee, and Dust: An Elysian Tale for $3.75 each.
Gone Home was $4.99 on Steam the other day, as a community choice.