I say bring them back, my knowledge of valves is a lot better than transistors and what-not and to a degree the circuits they used are a LOT simpler to fix than some of this SMD stuff coming out these days.
Mike,
Be carefull how loud you say that. The same crowd that is outlawing incandescent lamps, will have a fit if they find out that you are using room heaters to listen to cricket.
Don't you know that tube radio energy consumption is the leading cause of global warming.

Larry C