There are plenty of good edible mushrooms out to eat. Fly agarics might be of some culinary merit, but there is plenty others out there I can eat which taste good fryed in butter. I dont need the blinding headache, the nausea, the sweats these produce BEFORE the colour based hallucinations start up. I have spoken to people who have consumed them all except one said they got a really awful headache.
I think some mushrooms are eaten out of bravado. the french rave about grisettes, they look like a bit like death caps and are totally tasteless.