Your eBay reputation is everything you are on eBay without it, youre nothing. Your reputation is worth as much as every sale you will ever make.
If youve ever bought anything on eBay (and the chances are you have), then think about your own behaviour. Buying from a seller with a low feedback rating makes you feel a little nervous and insecure, while buying from a PowerSeller with their reputation in the thousands doesnt require any thought or fear it feels just like buying from a shop.
A Bad Reputation Will Lose You Sales.
In fact, a bad reputation will lose you almost all your sales. If someone leaves you negative feedback, you will feel the pain straight away, as that rating will go right at the top of your user page for everyone to see. Whos going to want to do business with you when theyve just read that you took a month to deliver the item, or that you had bad communication and sent a damaged item? The answer is no-one.
Your next few items will need to be very cheap things, just to push that negative down the page. You might have to spend days or even weeks selling cheap stuff to get enough positive feedback to make anyone deal with you...