If you are planning on buying a laptop there are some things that should be considered first. Cause if you will follow what the sales guy says then you are more vulnerable to fooling.
Whether if it is for entertainment or any office related work your laptop fulfill all purposes. Laptop is considerably different from a smart phone. You have to be more wise in choosing one.
1. Budget: the first thing is of course deciding your budget.
2. Battery: it should be on the top of your list of consideration. Some people ignore it but you should buy one which has a 6 hour battery backup at least.