I keep a little notebook in my purse for information I want to save. It's not as good as a photo but I have never had anybody say anything. For all they know you could be figuring out your yardage. I have seen someone take a photo of a store sample quilt that the staff didn't look pleased about but they didn't say anything. I am sure many people do get the information and buy on line but in this technology age, I don't see how being nasty is going to improve their bottom line.