I carry a ritter knife everyday. One thing you might need to look into is the legality of carrying your knife where you live. This would include state, city and workplace regulations. I think it would be too bad if you didn't have it with you at the time of some emergency because you can't carry it everyday, the best survival knife is the one you have on you when trouble happens right?
For california i looked here:California Knife Laws

Another issue is the reaction people will have when you use it (if it's a nice knife, you will be tempted to use it). My old spyderco made people nervous when i would use it for opening boxes, eating lunch etc, something about that serrated edge. There are lots of stories on bladeforums about this, see http://bladeforums.com/forums/showthread.php?t=379247 The ritter is a lot less threatening looking and the wide blade makes a great cream cheese spreader. <img src="/images/graemlins/smile.gif" alt="" />