There are numerous options about where to buy your laptop. You can purchase a machine
Directly from the manufacturer, using the Internet or a catalog and telephone
Online or using a catalog from a computer reseller
At a “real” retail store such as a computer manufacturer's store, a consumer electronics store, a computer store, or an office supply store
There's nothing wrong with any of these options. It all depends on what you are most comfortable with and what works best for you. It's even okay to mix and match: You can check equipment out in a brick-and-mortar store, and then go ahead and buy it online.
Do make sure that you buy your Wi-Fi laptop from a reputable vendor who will make things right if there is a problem. It's a fact ...