Would buying a good chunk of land make you a "hoarder"? Depending on where you are 20 acres can be more than $10 million even before you build a house etc.
Definitions of wealth often exclude primary residence for this reason, it depends a lot on where you live, and it's also not very liquid. There are poor people who own large houses (but can't sell for whatever reason), and there are rich people who don't own any house at all.
Spending $10m to buy 20 acres is hardly a "need". I think people here are missing the point of the quote by throwing out a bunch of absurd technicalities.
