Yes for my apartment, which has always had carpet since it was built in the 1920s. I've toyed w changing it to hardwood or polished cement like many other units have but there are pros and cons to keeping the carpet. It's a lot warmer and quieter, for starters.
The downside is that I need to change it out every few years and that costs $$ and a lot of inconvenience, (clearing out the carpeted rooms). I only use the highest quality berber carpet in a light color and change the pad every time. I always go to some big remnant place down in the 'hood and find a roll w enough left for my small place and pay their guys to do the install and remove the old one, etc. The carpet I buy for a few hundred bucks because it's a remnant, (it's brand new of course, the left-overs from some big job), would be $$thousands at retail. The cost of top berber in the big mansion it probably came from might have been in the six-figures.
Cheap carpet would be a total no-go for me. It's nasty stuff. Even using good carpet, it's not the bet for allergies as it holds dust in places that are not easily vacuumed, (underneath book cases and the couch, etc.), it's definitely a trade-off but it's beautiful and makes the crib really quiet and warm.
