Over the years of selling on eBay I’ve learned a few things
1: If a chain electronic B&M store or online store makes a mistake in pricing and you get an amazing deal you can flip on eBay, just remember that there are least a thousand other people all over the US that got that same bright idea, and your ability to get a decent price is going to be compromised for months as a glut of this stuff lists the sale listings.
2: Sometimes the oddest things sell like crazy, and yet deals you think are amazing will just sit there.
3: Old non-tube amplifiers and receivers are generally pretty worthless unless they are a high end mark name. Surprisingly older, high quality cassette tape decks in good shape can fetch a very nice price.
4: When setting fixed price for shipping it is invariably a California resident who buys the item (I’m in Maryland).
5: USPS is on average a risker crapshoot than UPS, but for overseas items it’s only afforable way to go.
6: If good feeback rating will let you sell higher priced items more easily.
7: Paypal fees rape you when selling higher priced merchandise.
8: New, high end, brand name shoes on eBay are often insanely cheap.
Feel free to add your experiences