My nephew is getting a 3D printer and I've seen a lot of people recommending the Bambu Lab A1 printer. He has a little experience with one of the Creality printers already. My question is if he gets the base model, can he later add the multi color printing or is that a buy it or you don't get it? I think the multi color version i $489, so that might be pushing it for him. He mainly just screws around making random things, but I'm going to commandeer it for some things so I want to make sure he has a decent one. Oh and so he has fun, blah blah blah.