I don't agree at all. A bad promoter who books a good DJ does not make for a good party. There are a lot of other factors. A good promoter with a strong reputation can put on a good gig with out the big names and it can still be a great night. The best nights I have been too, I didn't even know who was playing and I am quite sure they weren't big names.
Nights with big names usually disappoint me. Too much hype and pretentiousness and less money in my pocket for substances.