Howdy
Soaking brass in a vinegar solution is a bad idea. If left in the solution very long, the acid will leach the copper out of the brass, causing the brass to become brittle.
You have posted in the revolver section, so I am assuming you are reloading for a revolver. One of the benefits of tumbling brass is it removes any grit that may have gotten on your brass if the brass fell to the ground. Grit (particles of sand) is hard, and if left on the brass it will scratch your dies, which will then in turn scratch the rest of your brass. If you dump your empties right into your hand or a bag, you will not get grit on them. If you dump them on the ground, you will.
Rinsing your brass in water, not soaking in a vinegar solution, will remove grit, but tumbling brass is so easy, I don't know why anybody would mess with rinsing their brass. I do rinse my Black Powder brass before tumbling and reloading it, but that is a different story.
You can save some money by not buying tumbling media but instead go to the pet store and buy some Lizard Litter. It is the same crushed walnut shells as some brands of tumbler media, but it is less expensive.
Don't bother cleaning out primer pockets, it is wasted effort. I never clean out primer pockets except for my long range Black Powder 45-70 rounds. Everything else, 45 Colt, 45 Schofield, 44-40, 44 Special, 38-40, and 38 Special I just decap/resize, then go right to seating a new primer. On a progressive press there is no option for cleaning out primer pockets unless you take them off the press after decap/resize, clean out the primer pockets, and then put them back on the press again. Waste of time.
One more thing. You can add different things to your Lizard Litter to make your brass shinier, but super shiny brass does not shoot any better than brass that has been stained a little. It is just easier to find in the grass.