I don't believe what eWiz did is currently against the law, only unscrupulous. Bait and switch means they offered you another item to replace the sale item, which also isn't the case here.
Obviously, eWiz uses these price fluctuation to bring extra traffic to their site, something Amazon.com does daily on a much larger scale. And yes, Amazon.com is notorious for changing prices while the items are still in your cart. Many sites will also fluctuate prices based on your buying habits and customer profile, and what they think you'd be willing to pay... all perfectly legal; they call it "dynamic pricing."
Web sites change prices based on customers' habits
But when you're chasing the best deals, you shouldn't always expect things to go your way. Ultimately, it's the squeaky wheel that gets the grease, so congratulations to anyone who was able to get the powersupply for such a low price.
Obviously, eWiz uses these price fluctuation to bring extra traffic to their site, something Amazon.com does daily on a much larger scale. And yes, Amazon.com is notorious for changing prices while the items are still in your cart. Many sites will also fluctuate prices based on your buying habits and customer profile, and what they think you'd be willing to pay... all perfectly legal; they call it "dynamic pricing."
Web sites change prices based on customers' habits
But when you're chasing the best deals, you shouldn't always expect things to go your way. Ultimately, it's the squeaky wheel that gets the grease, so congratulations to anyone who was able to get the powersupply for such a low price.