Lets be realistic here. Yes you can level you way to end game with crafted gear if you so choose to spend your time doing it and you will be spending a lot of time if you choose that route. Yes you can make money with crafting and resource gathering which also takes a good amount of time.

But.......The people who know how to do this properly aren't going to come onto the general forums and ask how to make gil in the game. Random poster 787654 asking how to make cash and also stating they burned through their quest reward cash with teleports most likely isn't going to have the knowledge or patience to do this. For that person, the most logical thing to do is continue with the story line quests, using the duty finder to get dungeon runs for gear, and save the money from burning through teleports.