I'm working right now on an inventory management system for a clinic which would really benefit from pulling the prices and availability from a very specialised online shop. I wish I could just get a large, fully cached status of all items in a json/CSV/whatever format. But they're extremely not interested, so I'm scraping the html from 50 separate categories instead. They'll get a few daily bot hits and neither of us will be happy about it.
If people are scraping data that you're not selling, they're not going to stop - just make it trivially accessible instead in a way that doesn't waste resources and destroy metrics.