It's funny how different it is to be in the houses with lights on vs. off. During the tour, I loved the leg lamp in Psychoscareapy and made a mental note to look for it when we went through as a "real" haunted house. But the first time through there was so much going on that I totally forgot and missed it! We managed to do that house 3 times, so I did see it on the second go-'round, but I'm glad I saw it with the lights on first or I think I would have missed a lot of detail. Same for Mary Shaw...that one is sooooo detailed, so I tried to remember to catch as much of it as I could when we went through at night. The lights-on tours will not spoil the houses at all; instead, I think it enhances them when you go back and do them later.