Seems like you're not out of luck with those old dogs just yet....
This week a study out of McMaster University in Hamilton, ON has been making the rounds. It's the one that found that older subjects are better able to apprehend the "bigger picture" when it comes to a given situation.
While researching, I also happened across this article about moving images, perception and age.
Both of these articles have relevance to the design and development decisions one makes when producing web-based content.