They can be interesting despite being fake because you can study them to learn how to read the characters. And in doing so, one can also be surprised to see obvious wrong things on some of them. I bought a couple assortments like the one pictured just for that purpose. Much time can be enjoyed to learn about what is depicted on each coin and it doesn't matter if steel or not. Doesn't have to be genuine to be appreciated. Actual genuine coins like these may never be available to most. However, one downside is that you really should have some books by essential authors. While not overly costly, a serious collector would or should invest in some of the better reference books.