As a hobbyist, it is possible to make fantastic pictures with a cheap camera. To illustrate, I just saw one such picture yesterday at my cardiac doctor office. The pic shows golden evening light on a huge grouper he caught off Mersing. Five people were holding it, staggering under its weight, smiling, in a boat. Everything was beautiful - mood, exposure, compostition, details, moment sharpness, dof etc.
He whispered that he shot it with a 'cheapo' $175 film camera bought 12 years ago. But he has 'upgraded' to an expensive Panasonic FZ something something that I missed hearing. My attention was on the mounted photo - wishing that I shot that.....
I agree with Topgun. If you are a pro, your clients may not be shooting a beautiful grouper in golden light.