I don't disagree. Hence why I suspect we'll be given one for free with the expansion. The cost aspect will likely be more for people who want to level multiple jobs/alts and to prevent RMT abuse, all while making a profit. Even if they didn't offer a free one, you'd be surprised just how many people are willing to pay just to avoid the horrible grind to endgame. The number of people I've come across both in game and on Reddit basically saying "I'd pay anything to skip those god awful fetch quests," is a little... surprising.
