Yes, you should. The process of constructing a home today leaves "gaps" that could lead to major problems going undetected.

There are a number of different companies that are providing trade services for the builder: site work, masons, electricians, plumbers, carpenters, sheet rockers, roofers, painters etc. These trades people are usually on site for only a few days before moving on to the next work site. They are focused on getting the job done and moving on, often at the expense of compromising quality.

Unless you walk the roof, crawl through the attic, pull the breaker panel and know what you are looking for there is a good likelihood that missing roof tile, piggy backed breakers, and black mold will be overlooked. All of these and many more problems have been detected before in previous jobs. 

1. It shows your home is "an open book".
2. It can save you money in the long run.
3. It can highlight your home's assets