Nope. We avoid no one. If you ever try to avoid a customer that's the one that buys on the spot. Pre-Qualifying is a big no-no in the car business.
There is a local dealer that I will not name that did the following:
Customer walked in and was not greeted fro some time. When the customer was finally greeted the Salesman immediately ushered them to the PreOwned Dept.
When the customer protested they were again ushered to the most affordable new car. The customer called it quits and came to my store.
The customer was immediately welcomed and greeted. The customer told the story and ended up buying the most expensive Subaru we had at the time.
The customer was an elderly African American woman.
It never pays to Pre-Qualify anyone based on anything. Everyone is my customer until they buy from me or some place else and even then you might still get the next sale depending on how you treated the customer.