do we allways need the devs to tell us how often we can enter whatever instance/dungeon/raid?
i didn't enter the rank 45 dungeon once yet, and i'm in no rush to do so.
the good between content you can access at anytime and content that has cool downs to access it, is that when you feel like doing something you won't be blocked to do so.

people that enter dungeons solely for the reasson to hunt gear should do so if the feel like it, it just requires a few clicks and SE could make you run the dungeon 100 times without a single drop.
that's about the same level of achievment as dynamis.
just that dynamis had a cool down of 72 hrs, and it took that damn xarcabard zone exactly 1 year and 4 months to drop my damn THF af gloves.

everyone has his own imagination of fun, yet what's fun for some shouldn't destroy what's fun for others.
if you feel like you need a 3 day cool down, then stop entering nonstop and take a break for once.

i guess if you want to enjoy your cake you shouldn't eat the damn whole thing in one go.