I know it seems like Paypal is a bad thing to a lot of people on here, but it does provide you with Buyer Protection and you are far less likely to get ripped off by someone. In the early years of Paypal, it was easier to still rip people off, but now it is pretty hard, since your Paypal account is linked to your bank account and credit card. If you intend to rip someone off, you don't use Paypal. I have been paying with Paypal for over a decade and have made thousands of transactions and not had a single problem.
When I was a member of Network54 around 2002/2003/2004, we bought and sold BBF/Boss 429 things and there were some tense moments for me due to money order transactions (like waiting 3 months for a certain someone to ship a pair of Boss 429 heads). Now, 10 years later, you should be using Paypal, but I realize some people think they are staying "off the grid" so the government or whatever can't see their money (too late).
I get frustrated when people say they are sending a money order. It is so dangerous to do that and it takes forever. For example, if you want something I have for sale and pay me with Paypal, I can ship that item 2-Day Priority and you get it in 2 days! But a lot of folks pay with money orders that they have to buy the next day, mail the money order which takes 2, 3, 4 days to get to me, then I have to wait to deposit it in the bank the next day and it will take 2 or 3 days to clear, then I will ship your part. That is probably a week and a half before you get your part! Plus, if I am a dishonest person, I can just take the money order and not send the part. I don't get it.