Are you kidding?
The first cleaning is the most important ever. Guns are usually shipped coated with a rust preventative that has little to no lubricating properties. It sometimes amounts to a dried on lacquer looking coating, which brings us to another point; never ever use WD-40 on a firearm for other than for its designed purpose, that being water dispersal. If you do, over time, it will dry into a very nasty lacquer like coating that will gum up the works.
A professional gunsmith once told me that better than 60% of his work was "Fixing" guns that were inoperable simply due to being dirty and improperly lubed. He went on to say that the use of WD-40 was one of the chief causes, because if left to set long enough, it will just glue things together.
Add to that the fact that sometimes the guns still bear filings and grit picked up at the assembly bench. I would never fire a new gun without a proper cleaning and lubrication, not to mention the inspection of parts, fitting and function that go along with it.
A clean, dry, and properly lubricated gun will last just about forever if fed proper ammunition. I don't know anyone who fires his guns even nearly as much as I do, and my guns stay like new in fit and function compared to all of them. The attitude comes from having carried a gun for a living for over twenty years while usually alone in very remote areas, where that handgun was my only backup.