Since you think you may be looking for a job within the next year or two, I think it is worth upgrading. It may not be required in the next job, but knowing ahead of time what is coming as a standard always ends up being a positive.
If I remember correctly, your MOS is in 2000? 2003 does not have enough difference to justify recertifying, but 2007 has an enormous number of changes in the user interface.
Plus a new certification pursuit might give you an activity to reduce the boredom you are currently experiencing!!!
