Is there any real difference in brands of chalkboard paint? I need to do an inset for the cabinet on the side of my refrigerator in our new remodel and the size is so odd the only thing to do is to paint it myself.

(What I really want is the metal boards like that have in Starbucks, but I'll settle for the much cheaper option of painting my own board and using the chalk ink pens that they do... lol).