I had one of the best months I have had in 10 years this past month, I sold a TON of small items. One thing you aren't taking into consideration, from what I can tell, is that it's a LOT bigger marketplace today than it used to be. There are TONS more sellers and LOTS more listings, therefore, you HAVE to either be a known authority on what it is that you're selling, or you have to have the best prices and customer service. It's no longer anything remotely like a yard sale site and hasn't been for a long time. I sell a handful of specific guitar parts along with other musical related items, and I am considered somewhat of an expert in my field. I am also a certified woodwind repair technician. I am good at what I do, and I have an extensive knowledge of guitar and band instrument repair. I've been at it for 30 years now and have the experience to go along with my schooling and certification. Even with all that, the #1 principle of eBay selling still is true. Your profit is in what you initially PAY for your item, not in your selling price. Want to make more? Then you need to buy in numbers large enough that you can demand a better price, and if you aren't given a suitable price, walk away and find another supplier. Or manufacture your items yourself.
