"We" usually say to keep the bags unopened as their value is usually greater that way. "Common" bags (value under $10 each or so) could be opened but I would keep the bag, staples and marbles together as "provenance" or just a cool display method. Now, another reason to open might be the condition of the bags. For example, in your first photo, the value of the bags would only be the value of the marbles as the bags are so damaged, they are worthless. So, opening those would seem to be okay (I'd still keep everything together so you know what came from where). The bags in the 2nd and third photos I would keep intact, especially the 2nd as it is unusual and has those cool logo marbles (even if made in the last 30 years or so). Just my thoughts.