Because he suddenly received many private messages.
Although most people were asking if he could lower the minimum purchase quantity, Waldo refused them all. However, there were still some people who were very generous and bought a large quantity of ramen and cola right away.
Soon, Waldo had earned 30,000 experience points. However, Waldo quickly noticed that many people were lamenting that they couldn't buy any ramen or cola at all.
"Could it be that I set the bar too high?" Waldo thought to himself.
Upon reflection, the threshold did seem a bit high. Most people were unwilling to spend so many experience points. And for most people, ramen and cola were not essential items.
Buying them was just a way to satisfy their cravings.