I had always used a mouse with my previous laptops like my Dell because I just couldnt get the hang of the trackpad and I needed the more usage that a mouse gave me in working with small projects, images, etc.
So, when I got my Macbook, I also bought a mighty mouse to go with it, however once I started using this trackpad I realized I didnt need it. I think I picked up the mouse once to see how it would feel, but quickly went back to the trackpad. I love this Macbook trackpad!!! I will occasionally have to do something on one of my other home pc laptops and dealing with those trackpads anymore just frustrate me! lol I never thought using at trackpad good be this good after using all the substandard pc ones for years! So, no mouse for me!