That is actually not necessarily great advice because you put yourself on a list of clients and get fucked when they get hacked. If you get it from a random elctronics store instead the likelyhood of them getting hacked and someone digging through their data to identify the 5 customers who bought a hww there is tiny.

Or buy it for cash at a confernce, ship to a PO box etc. But putting your name on the most obvipus list of ppl who likely have substiantal amount of assets is not something that should be suggested so carelessly