The amount you spend on your parents for Christmas depends on many factors, including your budget, your relationship with them, and their needs and wants. It's always a good idea to consider the interests and hobbies of your parents when choosing a gift, as this can help you find something that they will appreciate and enjoy. Additionally, it's important to remember that the thought behind a gift is often more important than the cost, so don't feel like you have to spend a lot of money in order to show your love and appreciation.