Yes, I think MagLev trains are great too, but, as with all utilities, their rate of acceptance/use/take-up probably depends on the cost and the relevant perceived marginal utility of MagLev transport.
Compare it with (say) the priority of and the perceived marginal utility of the provision of potable water to all citizens in a society.
Bangkok's (Thailand) overhead electric train system (SkyTrain) also comes to mind.