The store-versus-marketplace debate is usually framed as a choice and actually lived as a portfolio: marketplaces rent you access to demand that already exists; your store builds an asset, customers you can reach again for free, at margins no marketplace allows. The operating question is not which, it is what mix, for this catalog, at this stage.
What each side actually contributes
Marketplaces contribute discovery and trust-transfer. A buyer who has never heard of you will buy your product on Amazon this afternoon, the reach math, because the marketplace’s trust covers the gap your brand has not earned yet. The rent: fee stacks, price pressure, metrics servitude, no customer relationship, and platform risk you do not control.
The store contributes margin and ownership. No commission, full brand control, the email address, the repeat purchase, and pricing freedom, your fee-free economics. The rent: every visitor is bought or earned, and demand generation is a skill with its own payroll.
The honest comparison is contribution per unit AFTER acquisition costs: marketplace margin nets fees; store margin nets ad spend and content labor. Early brands routinely discover the marketplace’s rent is cheaper than their real CAC, and mature brands discover the reverse, both are correct, at their stage.
The mix by stage
Discovery stage: marketplace-weighted. You need velocity, reviews, and cash flow; marketplaces sell your first thousand units faster than your store will. The store exists, minimal but real, collecting the customers who look for you by name.
Traction stage: deliberate rebalancing. Inserts and packaging route buyers to the store (within each marketplace’s contact rules, which are strict); brand search grows; repeat purchases land at store margins. The mix moves when the store’s repeat rate, not its ad budget, starts carrying it.
Brand stage: store-weighted, marketplaces as distribution. Marketplaces keep contributing discovery and impulse volume; the store owns the relationship. Many strong brands hold 30-60 percent marketplace share forever, diversification is also platform-risk management, a suspended account or policy change should never be an extinction event.
The operational spine of running both
The portfolio only works if operations treat every channel as one business: one stock pool (a store stockout because marketplaces drained the shelf is self-sabotage), per-channel pricing by rule (store and marketplace economics differ, encode it once), one order queue, and channel-mix analytics per SKU, WHERE each product earns tells you which SKUs are marketplace creatures and which are brand items, ABC analysis with a channel dimension. Unifystock runs exactly this spine across the store platforms and marketplaces.
Common questions
Should new sellers skip marketplaces to protect the brand?
Usually no, brand protection matters when there is a brand to protect. Marketplace velocity funds the brand-building; the discipline is capturing the customers it creates.
Is undercutting my own store on marketplaces smart?
Deliberate channel pricing is fine; accidental undercutting trains customers to never buy direct. Price the marketplace’s fees in and keep parity logic conscious.
What share of revenue on one marketplace is too much?
When one platform’s policy change could kill the business, you are past the line, diversification (more channels, more store) is the hedge, whatever the exact percentage.
Do marketplaces cannibalize store sales?
Some overlap exists; mostly they reach buyers your store never would. The channel-mix data answers it per SKU, measure before assuming either way.
One business, many doors
Store and marketplaces on one pool, priced per channel, measured per SKU, from $49/month with unlimited orders. See pricing.