A/B testing prices is huge. In fact it is so common that loads of web scraping products get totally caught out with it (as ecommerce retailers tend to give the

A/B testing prices is huge. In fact it is so common that loads of web scraping products get totally caught out with it (as ecommerce retailers tend to give the best prices to new customers, ie ones without tracking cookies set). This actually totally broke one startup I knew (that was trying to build an API for ordering products from loads of ecommerce sites).