Do People Buy on Needs or Needs?

Do individuals buy on the basis of requirements or do they acquire on the basis of desires? Assume concerning it thoroughly – in your opinion, what motivates people to get – is it REQUIRES or is it WANTS? Currently quit trying to exercise all type of thinking, reasoning and the important things you have been educated over the years, like individuals only get what they can pay for, and also just answer the question – do people acquire requirements or do they get wants?