[kbenson]

That depends on the business selling the items. If they are stable, known and looking for any sort of repeat business, they are strongly incentivized to not con you, at least not in a way that leaves you upset with them later (if they trick you into buying something you like, I doubt that generally has negative consequences for them regardless of those other factors).

There's a big difference between the random online e-shop and the downtown storefront, or even big names like McDonalds. Many places are only successful because they've established a good, or at least reliable, reputation and people know what to expect.