drone registration

Hi. Sooo quick questions. Does anyone really have their drone registered (if so, how long did it take and was it expensive and/or worth it)? Secondly, I'm starting to get into commercial aerial footage and was told by a friend drone operators are expected to take a Pilot test now thru the FAA...

Is my registration # (issued by FAA) the same as an N-number? here is a link to a form, but in order to submit it you need an N-number?:mad: http://www.faa.gov/documentLibrary/media/Form/AC_8050-1_5-2017.pdf