Originally Posted by
Soon-TM
Night elves are as highborne as blood elves are, i.e. it really doesn't mean a lot. NEs proper in WoW appeared in WC3, and they were described as this rigid, theocratic, matriarchal society, averse to arcane (and with good reason, mind you) and quite xenophobic. Actually, the whole NE/BE opposition could be described as anti-arcane vs pro-arcane elves. By making the arcane a major element of a hypothetic new NE society, you are pretty much likening them to BEs/highborne, even better - since they've never had to suffer from magical withdrawal, a major them for both.
In other words, it would be "all the advantages without the disadvantages", while also stealing a major theme from other races. It's as if e.g. Dwarves were described as the best, fiercest, most bloodthirsty warriors ever, while keeping everything else unchanged. They'd get to steal one of the major selling points of Orcs (in this example) without the disadvantage of a militaristic society.