it all depends on how old you are, I you finished college and you have a good job than you could afford all the parts you want to, I you are still 17 18 and still in school and living at your parents and don't have a job but only depending on mom's adn dad's salary that could be the problem, or If you have a job that doesn't pay good could also be the problem. so the conclusion is find a way to make more money or study and get a good paying job
SORRY FOR MY ENGLISH IT IS MY SECOND LANGUANGE SO FORGIVE ME FOR THE SPELLING.