Yes, there is no bigger drain on the funds than the epic mount price of a whopping 5,000g, and Bornakk says that isn't changing any time soon. I completely agree that having an epic flying mount is definitely an epic achievement, and if Blizzard doesn't want to lower the price, that's their business. But as Captnclaw notes, the refusal to change the way epic flying mounts are obtained is almost singlehandedly keeping goldsellers alive.
There are lots of ways to give out epic mounts and keep them epic-- one we mentioned on the show was daily quests (which is what you're doing anyway, if you're trying to raise 5k gold legally), but anything in that vein would work-- a reputation grind, an item turn-in, an epic questline, or a combination of all of these. Making one of the best, most wanted items in the game simply cost a chunk of gold is more or less creating a market for goldsellers. And refusing to lower the price (or, better yet, take the whole process out of the gold market entirely) is leaving the door wide open for gold sellers to continue hawking their wares.