I don't know about you guys but the roofers, decorators, brickies I know don't earn anything like what you can plastering.. the only ones I know making a more wedge are gas engineers and electricians, and they aren't earning much more, it's more of a case of it being a bit more consistent..
I think with plastering though, it's a trade full of a lot of idiots who think being successful is being able to lay on more gear than anyone else, regardless of how much they are earning.. just look at the comments from other spreads on FB, YouTube comments etc/
Judging by people on this forum I don't think we earn s**t money by any stretch of the imagination, I know I don't, and I don't work mega hard either!