Guess it depends on what your dog gets out of the bottle....chewing, or noise factor (which is what mine likes about them, and my parents 6 GSD's did) It's always been empty soft drink bottles, no labels, lids, rings...and occassionally, with a little frozen water...for added loudness factor. As to expensive toys compared with empty, rinsed out soft drink bottles? my kids always loved the wrappings, boxes, when they were little too ;)