Although it might seem to the outside observer that Amazon and eBay happen to be in similar line of business in truth they're as about as far removed from one another are they might be.

On eBay sales of motor learn more (computer.yju.ac.kr) vehicles and attributes are almost the highest of any company in the globe. Amazon and eBay are totally distinct from each other so it is quite affordable to pick both to swap through (please notice that I mentioned trade not and though trade with).
To trade through either of those companies is reasonable simple and there's no reason at all why anyone working from home ought to hesitate to select other manufacturers to work with also. Both organizations Amazon as well as eBay work with a wide range of other businesses to create life much easier for themselves with services such as product suppliers, postage etc, statistics, dropshipping, there's no good reason why you should not either.