High DPI is a preference thing. I use mine at over 3000 DPI at both home and work. Anyone else uses either computer, and they can't stand it and want the 800 DPI guest set.
In finding a mouse, it's important to ensure it is comfortable as well. I'm currently using a Corsair Harpoon, and I appreciate the feel of it, and especially like having full control over DPI. Some mice only cycle between certain rates. Find one that's comfortable, fully customizable and then take some time to find your perfect DPI for you.