[header] How to convince your parents to buy you a mac [title] Figure out your situation first. [step] Do you already have a mac? If so, they will not want to pay for another one. Do your parents have pcs that are constantly slow for your use? Make sure that your reasons will mean something. 
[title] Understand that they might think you are too young. [step] For example, if you wanted one in 3rd grade versus 6th.