Ok, so if the price she had to pay was the lives of those in the village... idk I think that's kind of stupid. For people who aren't empathetic or who would want a wish granted for evil, that would be such a non-issue. Shouldn't the penalty for great magic be afflicted directly on oneself?
It's like; imagine some dictator wanted that power, then they were told the penalty would be some village dying off. I'd figure they wouldn't care so much, and then every warlord anywhere would possess that power. (Not to mention the people who died in this case were actually her enemies, mostly. Many less kind people would see that as a benefit rather than a penalty. Well, same with immortality.)