Yes, Michael, like I said, it never hurts to have too much resolution - and with computers as fast as they are today, a few extra pixels don't slow things down much as they did back when I first started doing this stuff. Back then the computers we used to rip files for output were only 33MHz had only 100MB of RAM and they were considered fast. So back then you wanted the images as small as you could go with out losing detail. I guess I have some habits that won't die, but it is still a good guide when asked just how much resolution is enough. Today it's usually associated with digital cameras and if that 2 Megapixel camera will have enough resolution or should I buy the 3.3 or 5 Megapixel one. Of course I usually answer that one the same as I do the question of how much RAM do I need or how much money is too much.
The answer to all of them is the same: how much can you afford? You can never be too rich, have too much RAM, or have a camera with too high a resolution.