While this is certainly a very valid request, I thought I'd share why the message is there in the first place. The Audit operation performs a number of file checks to validate the integrity and in some cases repair the Revit file that are not performed during file open. This means that a lot more data form the Revit file is accessed with two implications:
1. Some of these operations may indeed take a long time (this is highly dependent on file organization, how often the file is audited, etc)
2. A lot more data is in memory - may not be a big deal for some, but may have a significant performance impact on those with machines with lower RAM
All that is to say that there is a difference between the two options, and yes it is a good idea to audit your file every once in a while.