Personally I find it extremely annoying. I pay enough in taxes in NY that I'll try to take advantage however I can. It's bad enough that the fools at one time wanted you to pay tax to NY on clothing that you would purchase in PA. Now, I think most of the tax on clothing has been removed under a certain dollar amount. Oh, and there is a line item on the income tax form for you to fill in the amount of sales tax that you owe for any online purchases that you didn't pay NY tax on.
I live close enough to the PA border and have a few friends that live there. It certainly would be simple for them to get the item for me and I'll pick it up.