OK mate I will change my selection and give it a spin.
So far my impression of metal is that only 3 bands can be entertaining: Sabbath, Venom and Priest. Then we have 4 other good bands still worth a listen like Sepultura, Angra, Napalm Death and Helloween. The rest seem to bore me quickly. I'll watch all support bands in November anyway I may get a better impression of them when on stage.