So long as you have a little left in the bank for repairs and stuff, it's probably worth it. Not much else you're going to be spending gold on while leveling (for the first time, right?) You'll make up most of it by the time you hit 90 from quests anyway (which you'll need for Pandaria flying).
And it'll just feel great going that much faster.
Gold just starts falling from the sky doing quests the higher you get. Levelling slows down too compared to 1-70 or 80 which makes you earn a lot more. Definitely buy flying. Even if yo uwent broke the time you save is effectively more money later.
I would say it depends on what level you are. If you're about to hit Pandaria there isn't much point since you can't fly until 90 anyway. If you're going to farm your own mats while you level then I would but it.
Ended up getting it! it's soooooo good!
I had 18 gold left after buying it, but ended this day with 2125 from questing, dungeons and selling stuff to vendors
I got to 85 today, will move to Pandaria next, but I'll definitelycome back to finish all the quests in Uldum! My favorite zone by far in the game, everything about it is just awesome
I also did my first raid today (Dragon Soul), didn't even know what I was getting into when my guild-master asked who wants to join..
Also, I wanted to see if I could maybe solo Tempest Keep, and I was surprised to see I actually can
I read that ranged dps have an easier time because of the staff
I easily tanked everything, but I got locked and whatnot at the part where you fight all the weapons, and didn't realize it was timed then all his lieutenants come back and hit you as well.. then I got overwhelmed
I probably just need more dps to kill everything there faster and I'll be able to finish him off
definitely the best time I had playing this game!