I'm getting annoyed because I finished EVERY single quest there is and only have 3600 gold. I'm a holy paladin, I can farm maybe 10 gold an hour. I can't compete at any hot spots because I can't tag shit at 30 yard. If I want an epic flying mount ever, I'll have to buy the gold for it.
I made alot of money in instances.. normal ones.. I didn't even sell all the greens I got which could of made me a mint too. Granted back then BoEs were worth more than now but I never utilized my Mining that much early on either.
I did however make sure I had a 'money making' profession to help me there if needed, heck my old main even had tailoring that I ended up leveling so I could sell the transmutes off however this was after I got my mount
Being a Druid saved me 1000g or so for the 225 skill, but I never touched SMV back then so even without that freebie it would of at most taken me an extra week or two to get.
You shouldn't expect the money for an epic flying mount just from questing alone, it requires extra work however you decide to do it but I'ld not say its not that big of a challenge, you just have to adapt the ways you make the money based on your role.
PS: I started off with 1,000g~ on my account before TBC came out which went into the mount fund. If you didn't put much effort into preperations back then, then ofcourse you will be slower than those who did, heck I even knew people who made sure they had 5,000 ready and waiting before TBC came out so they could get the mount ASAP.
Anyway I digress, the mount thing is moderatly fine to me, people that want it bad enough find ways to make it happen, those that dont end up having to wait. They are something you earn, not a reward for just playing the game