The ONLY way I can think of it is in terms of my mom. She grew up in a very poor but good household. When my father gave her a diamond Rolex and she found out how much it cost she freaked and just could not wear it. I've talked to her about it and she's afraid that she'll break it, lose it, get mugged, ect. We cannot get her over this.
So now, we give her nice jewelry and designer items but we DO NOT EVER tell her how much they cost. And if she asks we outright lie or she would never ever use them.
Maybe she just can't bring herself to use the real thing after spending $$ on it. That's the only thing I can think of. But I am in no way condoning the use of a fake.