I was curious because I made a simple video about bass fishing / fishing lures about a year ago and have had about 7000k hits and about 12 subscribers just from that one video alone that I made without any intent of traffic or financial purpose ... 7000k may not seem incredible or anything but for a 3 minute video I made for fun it ranks in the youtube 1st page for a few different generic 2 keyword typings...
Just random thoughts...