All of these bands are at the tail end of their careers with no heir apparent. This is a shame. Although I am grateful to live in a world where small bands can find a stage and a niche market, and while concert attendance should not be a barometer of a band's quality, I think there is a place in the world for for the energy and environment of a packed stadium all listening to the same music.
You can have a great concert experience without fireworks during the encore, but they sure don't hurt.