This is where cookie clicker 1 becomes much more interesting than its name might suggest. The game is really about creating a system that keeps growing. You start with a single source of income and gradually build a collection of producers that work together. A purchase that seems expensive early on can become a huge help later. Once your production increases, the next expensive item does not seem quite as impossible anymore. You buy it, your numbers rise again, and suddenly another goal appears in front of you.
The game does a great job of making these small improvements feel rewarding. You are almost always working toward something. Maybe you are only a few thousand cookies away from a new building. Perhaps an upgrade is available, but buying it would leave you short of the next major purchase. Sometimes it makes sense to spend your cookies immediately, while at other times it is better to wait. There is no single decision that completely determines your progress, but the constant choice between spending and saving gives the game more depth than its simple premise suggests.