NO PAYPAL. The buyer can dispute the transaction with Paypal and their judgement is sometimes goofy but most important - FINAL. I "might" use Paypal for a $100 hold the game if the buyer really wants it and there are multiple buyers.
Best is CASH. Safest is Escrow as Vid states. Next best might be a bank wire transfer. I did this recently when I sold my Big Bang Bar. Its safe and secure as long as the transfer fee has been taken. If one hasn't then it could be fraudulent. It was $6 for me to receive a transfer. Very easy to do for the buyer at his bank and is fast.
Read this thread and make it a favorite for future reference.
https://pinside.com/pinball/forum/topic/how-to-not-get-ripped-off-in-pinball-vids-guide