Your own marketplace or selling on Amazon and eBay: which to choose?

Q&A • Comparison

Your own marketplace or selling on Amazon and eBay: which to choose?

On Amazon or eBay you are one of thousands of vendors and pay a high commission to the platform. With your own marketplace you are the operator: you choose your vendors, set the commissions and own the customer data. The choice depends on how much you want to control the marketplace and the brand.

Short answer

  1. Sell on Amazon/eBay if you want instant traffic and don't mind the high commission or the brand.
  2. Launch your own marketplace if you want to gather the vendors yourself, set the commission and own the customers.
  3. On Amazon/eBay the commission often reaches 10–20% and is not negotiable.
  4. On your own marketplace, you set the commission, per vendor or category.

Head-to-head comparison

Amazon/eBay vs your own marketplace (4marketplace)

CriterionAmazon / eBayYour own marketplace (4marketplace)
Who you areOne vendor among thousandsThe operator who owns the marketplace
Commission10–20%, fixed, non-negotiableYou set it, per vendor or category
Customer dataStay with the platformBelong to you
Brand and supportThe platform's brand, global supportYour brand, support in Romanian

Practical example

Example: a producer who wants to gather 30 local makers under one brand cannot do it on eBay, where each is a separate vendor and the commission flows to the platform. On their own marketplace they onboard all of them, set an 8% commission and collect via split payments — the vendors' money goes straight to them, the commission stays with the operator.

Common mistakes

  • Assuming your own marketplace necessarily means expensive from-scratch development.
  • Ignoring the cumulative commission paid on Amazon/eBay over the long run.
  • Giving up customer data, even though it is a marketplace's most valuable asset.

How 4marketplace helps

  • A SaaS marketplace platform with vendor onboarding, commissions and split payments included.
  • The brand, the commission and the customer data stay yours, in Romanian.
  • Connection to invoicing, CRM and notifications in the same account, through the 4b2b ecosystem.