Which is why it was suggested as a probable expensive paraphernalia to have as it's charges could add up to alot, and while it would serve as a minimal repair tool on the field it would always be more viable to eventually bite your pride and go back to a friendly city and repair rather than sit on a field for a week+ and let him charge you consistently as he repairs for you at the rate of 1-3% damage daily, not to mention equipment damage of that amount occurs from travelling.
And while I would never expect a nobleman to drag a personal forge around, a black smith with an apprentice or two surely would for the payment opportunities.
