I think anything that exercises your cat in a way that they enjoy is probably good for them as long as you're not making them ill or obsessive. For example, just last week my rescue cat that lives under the bed (he's been here for about a year and a half and yes, just lives under the bed) learned how to play with me so I ran out and bought a feather wand thinking he'd like that even more. He *did*, in fact, love it even more... and I played with him for about thirty minutes solid... and then he threw up. So, next time I'll obviously only want to play with him for about ten or fifteen minutes, heh. You could try toying with different locations to add some variety with the laser pointer, although your cat probably has a favorite way to play with it. Momo *only* likes to be run around in tight circles (and therefore she gets it the shortest amount, since I don't want to make her ill), Ichimu prefers if I run it in long, straight lines up and down the length of the apartment, and Shin-Shin likes me to run it across the back of the futon so she can chase it sideways like Spiderman. Two of my cats don't like it at all, unfortunately.