I can understand wanting a break in things to level, but most dungeons are only 30 minutes. And you only have to do the one appropriate to your level range 3-4 times to get the next one (early on, at least). And as a tank you have an instant queue into whatever dungeon you want. AND the potential to get gear. So many pros, but if I suppose if you're in a brain-dead mood (which I get too), then FATEs work.