Auto archive
                I would love to see a -archive option, similar to -delete for scripted synchronize, except that files that are successfully synchronized (or get or put) are moved to a different directory.  That would allow, for example, synchronize local -archive=./archive 
With this, if the local file is removed manually, a new copy is not re-downloaded.
Or perhaps this functionality exists, and I'm missing it...
            
        With this, if the local file is removed manually, a new copy is not re-downloaded.
Or perhaps this functionality exists, and I'm missing it...