If we build in big batches, the savings can be passed down to the customer. It save us more time, money and effort when building 50 machines in 1 batch rather than 1 by 1 orders.
Prices go up and down due to components, manufacturing costs, inflation etc… Our staff members has no control over this.
If you don’t have enough capital up front, why not pay a deposit to secure the price. The deposit will offer a guaranteed price even if the product has gone up.