The issue of GEDCOM and tags is a non-issue as far as I am concerned. The GEDCOM doesn't really need to include the tags.
There isn't a simple way to do a search or filter for the tags that I need in the location based tree that I am working on. I need the ability to tag people based on several different events. For instance, I want a group that contains anyone who appeared on any one of the state or federal census records for the town. Without tags, I have to do 15 separate searches and then compile the list in Excel. There is just no way to get the reports to come out the way I need them to for the town's 150 book without going to another software.
I hope that 2014 incorporates tags.