An unexpected Bargain, Store displays

On Black Friday i can't tell you how many Walmarts I went to looking for a certain DVD recorder. My friend was in search for one for her son. As it turned out we ended up then looking for another and in a split decision I decided I HAD to have one too. It was a bargain at $47. to begin with. My last attempt at finding one was at a tiny Walmart and they had 2 display models. I talked the manager out of 1 and got an extra 15% off! BIG SCORE! Yesterdya I decided out of the blue that I needed a stand mixer. i really didn't want or need a big kitchen Aid one because I know I don't want any of the attachments and I don't have the counter space. I ended up at Sears looking at some more moderatly priced mixers and as luck would have it they had a white Sunbeam mixer wiht a 450 watt motor on clearance. All they had was the mixer. Once again i talked to the sales staff and since their were none to be had in the back I got $10 off making it just a tad under $65. While checking out one was found somewhere in the very back of the storage room and instead of reringing it or adjusting the price since I had already paid I got one in thebox for the same LOW LOW price. The regular price was $159. I never would ask about store displays but heck, no more. If it is there on the shelf and the instruction book/warranty card is there then ring it up!