Moore’s Law states that computing power will double every eighteen months. He has been right for forty years. This means that it is foolish to shop for a computer that will last for the rest of your practice life. It is foolish to worry about filling up your server hard drive in four or five years. It is foolish because you will be able to upgrade to much better equipment at a lower expense in a relatively short time.
So the lesson is buy what you need to do a good job in the office today. Don’t try and buy a computer for what you will be doing three years from now. Because in three years there will be computers four times better than what you can get today.