Much like Kapoteeni I was offered free DLCs keys, but as an award for the Chosen of Asura title as opposed to winning the building contests (big congratulations on your wins @Kapoteeni. I have always suffered from ineptitude with sort of thing). And much like Kapoteeni I made the decision to give mine away, as I wanted to keep paying to support the game. So I devised a contest for our Modders and Artists in the community, with @KujoUjima emerging victorious and being gifted my DLC keys.
Personally I also like to try and pay full price for Indie games to give them a fighting chance and encourage smaller companies to have a go. For example, I have paid full price for and thoroughly enjoyed the likes of: Tormented Souls, Visage, Daymare, and Song of Horror, with Post Trauma squarely on my to buy list too!