Then you know pretty much nothing about photography.. professionals are just that for a good reason. Sure you can learn all the technicalities in one week, but the ability to think artistically on your feet while out on stressful assignments and be good at it is something that takes a lot of practice and talent. There's so much more to a picture than camera quality.
Exactly. It may not take "talent" to take a picture of some queer bodybuilder sitting somewhere, but having a pro photographer place you in the proper setting, with the right lighting, etc. is key.
For example, we had some photographer from NYC fly in to do our wedding photos (i didn't pay for it, no worries). We went to some pretty nice places, and the photos turned out very nice.
A year later, i went to a wedding with some country bumpkins where the local Klansman took the wedding photos and they turned out like shit. The equipment was pretty much the same, but the photos came out too dark, the background was too "busy", the poses sucked, etc.