I think you lost the context completely. Double Fine started the Kickstarter exactly on the premise of creating a game that only "breaded nerds" as you say would want. There's no need for a Kickstarter to make an up to date game that everyone agrees has a big market. What it's needed for it to make a game that doesn't fit the current market but for which there are a lot of fans. An overhead turn based RPG is exactly like a 2D point and click adventure, a powerful nostalgia trip for older gamers who don't want all that newfangled first person 3D stuff.