I could have written your post.
I once took a bus 60 miles from Santa Fe to Albuquerque to buy a car. I was 18, had just inherited about $5k and wanted to buy my first car. I walked into the car lot in Abq, a salesman came up to me almost immediately. I bought the car that I'd already researched and was planning on buying. I drove it back to SF, right into the dealership, demanded to see the sales manager and showed him the car.
He very nicely asked me what was wrong with it and I told him nothing, it was wonderful, and after being ignored at his dealership, I bought it at another one and walked out.

I bought my current house through the Realtor that was showing the house across the street. The one running the open house for my current house ignored me, even though I was the only one in it at the time. The busy Realtor at the open house across the street was very helpful. I made sure he (not the she in the correct house) got a commission.

I drive a MINI now, for a long time I was a Toyota driver. The Toyota dealership here had several salesmen that were very willing to help me - pick out a color. I asked about all-wheel vs front wheel drive and they (more than one!) came back with "what color were you looking for". I asked about 4 cylinder vs 6 cylinder engines and gas mileage and the response was "what color are you looking for?" I kid you not - two different trips, 3 different salesmen - the exact same response to any of my questions - what color do you want?!
I hoped they were incompetent. But, I asked a male friend to go with me on a third trip and they all of a sudden knew what drive train and engine options were available on the then-new version of the Rav4. Not incompetent, just stupid.
I went directly to the MINI dealership (a 3 hr drive away) and bought a MINI. I love my MINI.