I hate to defend your relatives to you, but people who are rich tend to want nice things, and therefore may have registered for name-brand expensive items NOT because they need charity, but because they have no desire to be surrounded with items purchased at Target or Walmart.
I like people like this because they tend to give away good stuff to thrift stores where I can buy it really cheap.
They are not rich by my definition, just too cheap to buy these things themselves. He is so tight it is not funny.