There are some definite good perks to using a real leather bag. Rather it be a real leather messenger bag, briefcase or backpack, the added benefit and bonuses far surpass that of a non leather bag.
One of the best parts about using or wearing a real leather bag is the ego charge you get from friends and strangers when they can't help but to compliment you. It's enough to enrich a bad day with confidence and pride in just being you.
Another really good thing about it, is that you know you won't need to buy another leather bag again for a very long time. Day in day out you will have that part of your life all sorted out. Grab and go, your leather bag will last and you can ditch the worry of it not lasting.
Third would be, you will always be in style. One thing is for certain, real leather almost always looks good with no matter what outfit, fashion or style you choose to rock.
Fourth, you're doing due justice to planet and the eco system by using a real leather bag and not a plastic one or one made from some other random non biodegradable synthetic material that everyone seems to love these days.