I personally do not do the same location twice, but I may go into another town to do it. I have gotten professional Salesmen who are sharp and want to sell...it's always the lousy ones remembered. I also think some are hiring those without sales experience knowing there is someone there to help. I did Tesla a year or so ago, and kept getting emails to do it again, but refused. Once you do that one you are in their computer, so a sure giveaway. People do shop for cars, their not going to just buy one, so salespeople expect the looky loo's.
I have a old fried that worked his way up to Manager for Lexus and is a sharp professional and on top of his game and does well. The last two Salespeople I've gotten surprised me at how unprofessional they are, the last one probably never sold a car...poor soul.
Live consciously....