"Also...
Er Dan nodded thoughtfully, even though he didn't quite understand why Chen Mang was willing to spend so many Murphy Stones on a refrigerator. Upgrading a refrigerator to Level 10 indeed requires 8 Murphy Stones, but how would you sell that...
It's equivalent to sticking a four-sight Titan on an underground water tec-9.
The price is certainly high.
But it's definitely not as high as selling the Murphy Stones individually; selling in the green zone isn't cost-effective, as they can't afford a high price.
As for trading it for two boxes of cigarettes, that purely relied on his friendship with Chen Mang.
To be honest, he sometimes admired himself for it.
Initially, he had some disagreements with Chen Mang; that maze tormented him for a full half an hour. In such situations, most people would seek revenge. However, he maintained a decent relationship with Chen Mang.
This ability isn't something everyone has.
