Russ T., I never re-register mine, I just staple the lien release to the title, leave it until it's sold, or for some other reason needs to be registered again(Actually, where most of my cars end up, it doesn't matter, either "rusting in peace" on the back forty, or smashed flat in the scrap yard. When I'm done with one, it's pretty well used up).
Last week, I had to renew 2 pickups, 1 motorcycle, and my drivers license, I was in-and-out in about 20 minutes, another reason for living away from the big cities!