Engineering 1-525 rough cost?
I think it was 1k and 5 hours of ore farming back in BC when I went 1-375.
And there's nothing engineering can do to make that money back.
Keep in mind that the materials cost will vary wildly depending on your server. Also, the various Engineering leveling guides out there aren't necessarily very accurate. For example, on my server Volatile Air is worth about 5 times what other Volatiles are worth (and are enormously harder to farm). So minimizing the use of Volatile Air will save you substantial gold.
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