In the description I have written that I accept money orders on something I sold. Paypal is really dominant in ebay. They make it so you have to use that venue for filling out a "selling an item" listing.
PayPal is required of sellers on eBay now. To sell, you must be a PayPal member and must accept PayPal for payment. Including in your description that you will accept other payment methods risks having your auction pulled and even loosing your eBay account.
Sellers have the option of requiring that buyers be PayPal members.
I have a 100% success rate for sending such sellers a private message explaining to them that if I win, I will pay by Visa via Paypal and that they will receive their money via PayPal just the same. Requiring PayPal membership just reduces their bidder pool meaning that they will very likely receive less for their item. With this simple explaination, dozens of sellers have editted their auction to remove their PayPal membership requirement and dozens of seller have recieved higher winning bids because I was able to bid.
I, personally, will not be a PayPal membership because of PayPal's anti-knive policies. But, I will pay for auctions using Visa via Paypal. Unfortunately, I am no longer able to sell on eBay.
This is really all part of an evolution of eBay. eBay is now much less of the open, public market that it used to be. It is now just a way for dealers to hook up with buyers. The sellers on eBay are now all professional dealers. Individuals like me who used to sell one-up items are now gone from eBay.
I remember, for example, when I totalled me 1989 Olds Cutlass Supreme (a great car for a knife collector to own, a Cutlass Supreme... next to the Buick Le Saber, what other car could a knife collector own?). I had the service manual for it. What am to do with it now? I sold it on eBay. The buyer was an Oldsmobile collector who was delighted to fill a hole in his library and equally delighted that I threw in the key chain that came with the car. I was delighted to get a few bucks and that the manual was sent to someone who wanted it instead of the recycle bin. That's the sort of thing that used to happen on eBay. But, no more. Today, it's all dealers selling from stock.