Three different auction methods are arranged in order, and there's actually a purpose behind this, a clear purpose.
The first stage auctions off essential items; these goods, even if second-hand, have high practical value. As long as the pricing isn't excessive, people can accept it.
But the auction rule is a quick grab; whoever raises their hand first gets ownership. This quick grab method greatly encourages unnecessary impulse, possibly leading people to raise their hand hastily, not even knowing if they need the item.
Aside from the first successful person, others will fail, instilling a subconscious belief that if they like something, they must raise their hand immediately.
The second stage bid auction is intended to hint to attendees what a reasonable price for a second-hand product should be compared to its original price through the reality.
