Why git? I store my .vim directory in dropbox and just have it symlinked into my home directory on each of my machines. I don't really see a need for version

Why git? I store my .vim directory in dropbox and just have it symlinked into my home directory on each of my machines. I don't really see a need for version control, and I don't want to have to do anything to make sure a change on one machine is reflected on all the others.