The physical benefits of registering are the elimination of 
the "About..." information display on the opening and 
closing of the application, The more transcendent benefits of 
registering are;

. A product you know works the way you want it to
. E-Mail support on Compuserve
. Elimination of "About..." information on Open and Close of application
. The knowledge that you're supporting independent creativity
. Source code if you so desire