To be fair, hay is like a horse farmer's gold. When the prices start to increase, and KEEP increasing, it makes sense to adjust the price once to accommodate for anticipated price increases. Plus, to be honest, all people who own a business are in it for a profit. On that note, even if she did adjust it to more than what she is paying for the added hay that means she is able to utilize that money elsewhere, whether personally, or for her equine business. She has a right to put a price on her work... just like you have a right to choose where you can or can't afford to board. Good luck!