I got into buying online products in 2004, when Florida was hit with four hurricanes, the first of which knocked out our house power for a week. After that first one, I went shopping in Citrus County, then on the Internet, for a Honda generator. None were to be found within 400 miles of my house.
Ah, but I could have one sent, and did, from Kansas. The price was considerably lower than I would have paid buying from a Citrus County merchant, if one was available. Shipping was free and there was no sales tax.