All modern browsers display tables the same. That is not true for CSS which often requires hacks and often similar amounts of code as tables.
I have had CSS code written by experts that still needed additional tweaks and adjustments where if they used tables it would be the same no matter what.
As far as I'm concerned CSS is still new and it will be years before things shake out clean. That being said, I do try to not use tables for page layouts however I still use tables when laying out information in a table format as it's just easier.
I start all of my pages inside a <div> with the width that I want but I'll still use tables inside that from time to time.