"30 copper coins! That's too expensive! What kind of test is this, charging so high!"
"If you think it's expensive, don't be so quick to take out your Identity Card!"
"Half price, man, round it up, that's basically making a profit of 15 copper coins! Plus, the chance to test can be transferred. Even if I don't test, someone else will, right? Selling it for 10 copper coins should make some money, shouldn't it?"
"I'm planning to use Contribution Points. 15 Contribution Points at half price is only 7 and a half, which is still somewhat acceptable!"
...
Those who arrived early, though surprised by the high testing fee of 30 copper coins, took advantage of the half-price offer for the first one thousand people without much thought; they grabbed their Identity Cards and queued up to register.
The thousand spots were quickly taken.
It wasn't long before the number of people queued up at the test house exceeded 200.