I dont really see what the big fuss is about with taller tanks. I have a tall tank and its not problematic at all other than when it comes to cleaning it.
Im sure its harder to maintain somewhat, but its not all that bad, really. I would prefer taller because its more natural. Fish in nature are used to open water which is one advantage can i think of that tall tanks have. Im sure tall tanks are not too suitable for tangs but then again, that will depend on the size of the tank. Yes lights will become an issue but nothing halides cant fix. So, assuming someone can afford all the right things, i think taller is more fun to look at. But obviously this is my personal taste.