I wonder if that book really exists. Anyone know?
Along the lines of prices auto-adjusted between vendors, I have noticed, but not bothered to seriously document, that if I search for a particular item on the Internet, but don’t buy it right away, often the price at the same vendor the next day is higher. Maybe it’s confirmation bias or coincidence, but I’ve often suspected there was something going on as a result of my visit.
If it’s deliberate, it often backfires on the vendor, since if I didn’t want it badly enough to buy it right away, I’m probably not going to want it more at a higher price.