If its new stuff and you have content rich catalog content...the zon is the best place to go.

If you are a home office hack collecting old laptops, breaking them apart and selling used gear...ebay is your place.

At least, thats how it would appear to me. Each have their strengths. I am surprised by the growing number of "stores" at ebay that do NOT auction. That, to me, is simply leveraging the eBay brand but not using it to its design.