First report in the format, straight from my own desk ledger.
SOURCE
Facebook Marketplace. Condition new — full working PRX Powermatic 80, the blue-dial automatic everyone asks about.
BUY
$350. No extra costs logged: no service needed, nothing replaced, no shipping on the buy side (local pickup).
SALE
$570, sold direct to a buyer off-marketplace (a private/local sale, not an eBay listing). Because there was no platform in the middle: marketplace fees $0, payment fees $0, shipping $0.
NET
+$220 on $350 deployed. Logged as sold 2026-06-16.
THE LESSON
The channel was the margin. The same $570 sale on eBay would have surrendered roughly $70–80 of this profit to the fee stack (final value fee on price plus shipping, fixed fee, packaging — the full breakdown is in the Guides category under "The fee stack"). A private sale kept the entire spread, at the cost of a smaller buyer pool and more legwork.
The other half of the lesson is the buy: $350 only looked safe because the sold comps said the reference moves well above that. Comps first, then the offer — never the other way around.
Post yours in this format: source, buy, sale, net, lesson. Losses welcome — they teach more.