Overall. I wonder, if somebody gives me a Lambo, can I sell it, buy a bus, and drive friends in it?

I wonder which one is more expensive, a new Lamborghini or a new bus.

You mean just take the bus?

Yes, but… Let’s say papers A, B, and C are introducing methods. Often, each paper will choose to show the benchmarks in which their tool was the best. In reality, each tool might be better for a different task. If you understand the tools, and have gotten used to this kind of papers, you will probably get what each tool is good for. But the papers themselves are misleading, and people often just blindly use the “cutting edge” for everything.