Of course you do! Your Balmees will think you are GREAT for caring enough to drop a balm on them - you get more affection from family and friends (and maybe become their Balmee in return). The cause you support will be cause dollars richer because you dropped a balm on its behalf - you get a good guy/good gal pat on the back. You rack up game achievements the more you play. You meet new people and you have fun setting up or extending a StoryNet game.
There's a whole lot of WIN in a DropaBalm game.