True, but it's much less of a problem in physical shops. You can actually examine the merchandise. You know that the item you're paying for is literally the item that you're getting. You're dealing with the shop face-to-face, which reduces a lot of the more brazen scams. And if you have a problem, the shop is likely to do something to fix it -- and if they don't, you have realistic legal options.

In most ways, buying from a brick-and-mortar establishment is a better choice than buying online.