I Want A Samsung LED

I want to buy a big television. As big as 55 or 60 inches. I already saw what I want a samsung led television. My colleague suggested not to buy it cash. Instead get it through flexi rent. He said that he's been doing it for years and the result is very good. According to him, you will pay the rent monthly for 25 months. A little bit expensive compare if you buy it cash but the good thing is you can upgrade your television twice in a span of 2 years and a month. I think it is a good idea. What do you think?