When I started reloading, in the late 1980's, I had no vibratory cleaner. Come to think, I had no cleaning method of any kind, except to wipe off the brass with a rag prior to reloading, to keep the grit out of my dies.
Never had a problem. The brass got darker as the number of reloadings went up, but the rounds shot as well as any new. I would clean the primer pockets occasionally, more because I could do it with a primer pocket brush whilst sitting and watching the game on TV than for any other reason.
Do as you please with your free brass, but the cosmetics of reloaded rounds is just that - cosmetics.