I feel like I would much rather just buy upgrades or fly to see my brother in ATL for a few more times versus paying cash for PQP at almost a 1:1 rate. At least you get something for your money.
I did buy 1000 PQM last year for $95 to get me to Gold for 2020 (50,011 PQM), but only because it was cheaper than any flight I could find.