Companies getting the best of us

Are technology companies getting the best of us? I do believe so. An example is I have a printer that is 5 years old and I needed a small part but the company is not selling them anymore. But they tell me I can send my old printed in and pay 130 dollars for a new printer to be mailed to me. Why do that when I can get one for 70 dollars at Wal-mart? Companies should have to carry the parts to machines that they have made instead of trying to replace them with machines that will break in a year. I view this as another way for companies to make money off of the people of America.