I'm pretty sure walmart only sells the $40 dock, which doesn't include the hard drive. This is the better choice than the one with the included hard drive, since that drive is too slow to do much of anything. Get a compact flash (I got a 2 gig at walmart for 75 bucks) and enjoy. The playable game list is better than most people say but for a lot of games you might need a donor cartridge. Essentially, you put in an old game that you don't play anymore (like mario 64 ds) and the new game will save over that one. (It just saves over the save file, not the actual game). There are some really cool homebrews (and make sure you get Moonshell. It has a much better mp3 player than the built in player) Just be careful you don't download a virus that'll brick your system.