Can you even get a loan without it?
You can select the title company to use... so shop around if you only have one quote that seems ridiculous.
Keep in mind also that because it's a new house doesn't mean that there isn't some problem (however small the probabilty) might be that there may be an issue with the land it was built on... so, you're trusting the previous title companniew ability to establish a chain of ownership on a particular piece of real property.
WOrst case scenario is that you don't do it, you sell it down the line, the next folks have it checked out and there's a problem and your title is unmarketable.
Personally I wouldn't want that hanging over my head.
(my memory is fuzzy here, but, I think it's also going to double check any easments, right of ways, and other stuff like that... )