Fair enough. Not everybody walks through thrift stores for amusement. I do, both to sniff out hidden gems and to conduct the modern-day equivalent of an archaeological dig. In short order, I can glean more information about an area and its inhabitants than the local tourist bureau could ever provide.

Note that the math works out differently when you cross the border -- the numbers for purchase and shipping are substantially higher. So, there's more incentive to seek creative solutions.