Well yeah, many folks are drawn to the idea of winning the lottery by finding a hyper-valuable coin in their pocket change. People find it fun to contemplate. The notion isn't entirely misplaced—there are many posts on this very forum where people have pulled coins out of their pocket change worth $50, $100, or considerably more.
I do think, however, that there is much more consistency to learning how to identify rare and interesting coins online, and then hunting for them systematically.