Asterisk install method "yum install" or manual configuration

I was wondering what I really will be missing if I simply use "yum install -y asterisk" to install asterisk.... Vs... the manual - unpacking, configure, make menu select, make, make install...

I have tried it both ways, and so far the yum method just seems to be smoother and Asterisk works pretty solid when it is done.  I know I can add more selections with the menu, using the manual method, but what I am really going to be missing?  Extra music on hold packages?  Can I add the missing stuff on later?

Thanks!