I have used many a different kind of MP3 players. The Shuffle doesn't hold the most songs, but it is very convenient to use on the go.
Many people say "Why not just use your phone?" Heres why I think it rocks for active peoples:
The shuffle is small and light and I don't notice that I'm wearing it.
The clip is very strong and it doesn't come off my clothes while running.
I can smash it and probably run it over with a car but the aluminum won't break like a screen.
I can change songs without stopping and fiddling with a touchscreen iPod because the controls are intuitive and the buttons protrude.
These are some main reasons why the shuffle is my player for going to the gym and banging it up, running/biking with it (be careful!) and even swimming with it.
Recently I found some guys in San Diego called "Waterfi" who sell a waterproofed version on Amazon that works great for swimming. I sent mine in to be modified Waterfi Waterproof/Shockproof iPod Shuffle Swim Kit with Waterproof Headphones (NEW MODEL)
Its worth it if you spend alot of time in the water. Lastly, it seems like only the colors have changed since the last listing, everything else looks the same. I love the Slate!