Ethereum is the reference point for most modern smart-contract payment architecture. It defines the account model, wallet expectations, and token standards that many later payment-oriented EVM chains still follow today.
That makes Ethereum strategically important even when day-to-day checkout may be more practical on lower-friction networks. Merchants, developers, and wallets often still think in Ethereum-native patterns when reasoning about tokens, approvals, smart contracts, and settlement logic.
In CryptMeUp, Ethereum is therefore an important reference chain in the documentation layer, even though merchants may prefer lower-cost EVM environments for routine payment flows.