I have my SLR systems i use for serious photography, my Mamiya RB67 PRO S and my OM-20, for 35mm shots.
Then i've got a shitload of other cameras ive bought from second hand stores. Theyre usually around 10$. Some film is even more than that! I shoot a roll or two on each, and let them sit. Some i use a bit more, like my holga 135bc.