There are a few things to check before buying a MacBook. First, make sure you have the money to buy one. Second, make sure the MacBook is in your budget. Third, make sure the MacBook has the features you need and that it will fit your needs. Fourth, make sure the MacBook is compatible with the software you want to use. Fifth, make sure the MacBook has a warranty. Sixth, make sure the store you are buying from has a good return policy.