Why does everyone assume I'm rich or have a huge budget

i don't ever tell venders too much about a build ,unless it's neccessary,the more expensive parts on your ride the more they think you are willing to spend without a care as to $$$$.pro touring gives you visions of big brakes ,wheels high end susp parts etc.all very costly so they get dollar signs in their eyes...
When I called to order my wheels that was the guys attitude. I told him I wanted the Eagle 225's and he tries selling me wheels that were $2200 each because they would fit better with the theme of my car he said. He sent me a picture and they looked like they belonged on a mercedes.