Its sad, but profiling of potential new clients based on clothing, jewelry, handbags etc. happens at almost all high end stores, boutiques, car dealerships etc. I worked at several high end stores when I was in college and I found the SAs always noticed and mentioned what potential clients were wearing. Some are SAs are just better at hiding their evaluations of a potential client, and some SAs are just nicer people than other SAs.
If they do it isn't right and it certainly doesn't mean they can treat potential clients poorly in the process. It's pretty sad that I got such poor service carrying a neverfull and wearing jeans. I can't imagine if I had walked in carrying a tote from target and shorts. Lol. Would they have escorted me out the door? It's ridiculous.