re: Flooring: tile or carpet for spare bedrooms?

Like already mentioned, far too many better options to use as opposed to carpet.

Yeah, it goes down in an hour or so when the installer knows what he's doing, but dealing with the problems involving carpet is just not worth it for my personal taste.

I've had it in houses I have owned but removed it as soon as I could decide on what to replace it with.

Little kids and pets will flat ruin carpet long before it's intended lifespan.