As I thought there is no real answer here, but in my research frustration I had to make a post to see what would be said. I did a lot of research and came up 50/50 with the carpet/no carpet in the basement question. I have to wonder why builders dig a hole the size of your house that you can stand in, and not use it? Thanks for everyone’s advice, I think a lot of advice is from experience of others or directly ourselves. I have read a lot about mold situations in basements with carpet, and if you read them you would never do it. But like anything else if we knew all there was to know we would all live in plastic bubbles with the most advanced air filtration system on the planet! Any other comments are welcome as I have yet to make a decision.