Why do they sell suitcases in the departures lounge' s in airports?

Everytime I go abroad I come across a shop, in the departures lounge, selling suitcases.

Who buys suitcases when they have already passed through customs and awaiting to board their flight?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).