Using CSS to format forms instead of tables

Lately, I see articles everywhere telling us to ditch tables and use CSS to position forms. I don't necessarily have a problem with using CSS although I'm admitedly a bit new to using it for anything more than basics like sizing, color, borders and backgrounds. But my basic question is why ditch the tables?

Tables have been around since the inception of html. They work with any browser you care to name and the provide a valid function allowing developers to position things on the screen in a pleasing manner. The flow of data in tables is simple, so the developer and usually the user can predict where the cursor will go when the user hits the tab key. There are certainly problems with tables, such as text wrapping or being truncated when the screen resolution is lower than the developer designed for and the positioning is not as clean as absolute positioning with CSS.

Absolute positioning with CSS can lead to its own problems though. If the user has fonts set to a different size or odd video settings the size of the object positioned may not be large enough to display the text. This can cause object to overlap making the page unreadable.

It may sound as if I'm just trying to hang on to the old way of doing things, and there may be a bit of truth in that, but more I'm asking for valid reasons to change the way I do things. I actually like finding new ways of doing things but there has to be a benefit to it. How will swithing to CSS layout instead of tables make my pages better for my users or easier to develop and maintain for me?

I look forward to your responses.