This was actually a big problem at Costco, which allowed turns on electronics after any amount of time. People would buy a TV and use it for a year or two and exchange it for a bigger, better one. Their old policy even allowed 6 months on computers, which, as you can imagine, plenty of people took advantage of.

They cracked down a few years back but are still very generous.

http://www.nbcnews.com/id/17350641/#.VogfljYhKW0