When you peruse a store's laminate section solely to look for colours that would look good on a future project.
When you are at work the majority of website tabs point to pages like KLOV, BYOAC, Ultimarc, GGG and Twin Galaxies.
When you see material odds and ends and think "Man, Ond or Drventure could probably use this for something cool."
When you can't walk past the expensive wood in a hardware store without thinking of Pixel's Mission Control Project.
When you buy a house, everything revolves around the arcade you plan on building in the basement...
Heh I am going through this right now. I have denied several houses the wife liked when looking solely based on the fact that it wouldn't work out for my game room
Guilty as well...the house I ended up buying had the perfect "Man Cave potential"