Yeah except when you're doing that for the 10000th time or even the 20th it will be damn well annoying. You simply can't make any repetitive task fun no matter how hard you try. Forcing SE to change one system to another to another etc. is just going to stop this game from going anywhere. The more time wasted on things like this, the less time for real content additions.
What makes your solution of paying 90k per gold ore any better than the way it is now? Everyone can afford to spend time pressing enter to rank up crafts but very few have the funds to blow away 10mil per rank to get to 50. You're just putting crafting into the hands of the super rich with that. Sure you could gather that gold, but you already can't gather it fast enough to rank up GLD on it, no way you could if it was auto levelled. So you'd be forced to pay that 90k regardless.
That said no one would rank up GLD on electrum if ore cost that much. People already bot sea hares for red coral to rank up GLD on that because it's easier than botting gathering nodes and they get more GLD SP. So the botters would just heavily bot mobs that drop skill up items while people like us will be forced to pay for the ores because we can't compete with people botting mobs.
But anyway if you put crafting into the hands of the super rich you create a situation where the rich get richer and the poor stay poor because they can't afford to catch up.