Will, Many of the ideas within OO are to promote encapsulation, easy reuse, and increased maintainabilty. In your example, it may be much easier to submit a form to a page that takes those values and adds them to the database. But for example lets say you are storing a "customer", and that you must ensure that there are no illeagal characters in their name. In your example, this can easily be done inline in the page, but what if you have multiple places where a customer can be entered? What about the SQL necessary to store this customer? Using OO, each of these operations is in exactly one place, and all your other code leverages that single place. This is one of a myrid of problems that OO attempts to solve. You gain flexibility and maintainability but at the cost of an increased learning curve and additional complexity.
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