It took the Doomsday event for me to finally reach the epiphany that they are stingy with characters (needlessly) and rely on the fact that you may spend and spend and spend in an effort to try and get some characters. As soon as you give up the hunt for characters, then they tend to appear it seems.

With the current power creep, it feeds the drive to get the "latest and greatest" every time.. that's what they rely upon.