Each Service adds a marginal cost to maintenance, ops, infrastructure and debatably development speed (Easier to refactor in an IDE and semi-atomically deployed

Each Service adds a marginal cost to maintenance, ops, infrastructure and debatably development speed (Easier to refactor in an IDE and semi-atomically deployed code than 50 independent services ). If you have a team of 5 people, launching 50 services is probably not as efficient as 10 services.