Should I use a book binder or plastic cases for my baseball cards?

I will answer any questions you ask me about the binder and plastic casingShould I use a book binder or plastic cases for my baseball cards?
You must value them if your collecting them so if it were me I would put them in plasticShould I use a book binder or plastic cases for my baseball cards?
i use both....the binder is good for common cards and rookies...but if you get anything else hard cases

get ride of