"Usual price" is just 一場游戲

I have been seeing a lot of advertisement putting "usual price is xxx, now xxx". While some are real, many are fake! I have seen for past months, a blu-ray player is selling at $299. Then, I saw it one day, it advertise as "usual price is $499, now $299" making it as if a price drop of $200 now. So moral of story is 貨比三家 and followed the price even though you might not be buying any sooner. 留意平時價格 is also good is when you buy a product, you will know if this shop sells at higher price or not. Just like my Logitech mouse, I pay $3 more at Best as compared to Harvey Norman where I thought usually such brand has same pricing around.