I bought Sanctum pre-release and it turns out that was a major mistake. The game was released with 3 levels total at launch and they justified it by describing the 4 difficulty modes for each level as "additional content". Then not long after they released paid $DLC. I don't think I have ever been so angry at a purchase.
It is a good game and, yes, they gradually released a couple more free levels and stuff, but this company has a long way to go to earn my trust back. First impressions are tough to overcome.
"If I want to say [George Washington] didn't [have slaves] that's my right, and now, thanks to Wikipedia *taps keyboard* it's also a fact."