In my professional life, we had customers who might spend under $10 right up to clients who I won't name, but everyone will know of, who spent millions or tens of millions,
Did they get treated better than a pimply kid buying a used common penny for $2? Shit yeah.
Kid treated nice (by me, maybe not so nice by the boss) million dollar people, dinners, wine, the royal treatment.
Saying that, there were some big spenders who didn't like or want a fuss, and there was one drongo, who while it was a reasonable amount. Maybe around $50k, was demanding special treatment and didn't get it, much to the amusement of us workers, my boss's wife had never heard of Russell Crowe and wouldn't let us do anything special, haha, the look on his face, and the look on her face after she saw him on television a few weeks later.
So... I agree, it's bound to happen.