What about... (Score 2, Interesting)

halogen? I'm looking at installing dozens of recessed halogen lamps in my home in the next few months. I plan on flipping the home, but I wonder if something like this will cause problems for those in the future. The bulb socket will only accept a halogen bulb. If they are no longer sold because of envromental reasons, the lights become useless and would have to be removed.

Could be frustrating for those in the future.