Actually, I think I'd forego an inspection on a home that's 3 to 5 years old before I'd skip it on a new home. Let the first owners shake it out. There's alot of crappy/shoddy work that goes into some new homes, especially in large developments. I've known several friends and coworkers who've bought new homes (first owner) and many of them have had significant issues. Warranty is fine, but by then they already have your money, so they'll be in no hurry. It'll get fixed faster if the sale is riding on it.