When I send an email to a seller, I can express,
1.
I want to buy ….2.
I need to buy ….What is the most suitable one? What are the differences between “Want” and “Need” ?
Answer
Want means to have a strong desire for. In your sentence, I want to buy smth, you practically say that you wish to buy smth.
Need means to be in need of, to require. Your sentence, I need to buy smth, suggests that it is imperative (necessary) for you to buy that object. It’s not only a wish, but a vital requirement to buy it.
Attribution
Source : Link , Question Author : user_fs10 , Answer Author : MihaelaP