A one-handed keyboard is often better if you only need a keyboard for gaming. Standard keyboards can't offer the cost, performance, and space benefits that one-handed keyboards do. For gamers, a full 101 key keyboard with high quality switches and key caps is much more expensive. Instead of replacing your regular keyboard, a one-handed keyboard can simply sit next to it. If you're a lefty then you can use a left handed gaming keypad. The improved ergonomics and gaming performance of these keyboards are also huge advantages. Gamepads in general are designed to support your hand while you play and do not require you to move your hand around. After your muscle memory takes hold, you will forget it's even there. A second advantage is its size. Put your big keyboard away and just use your desk space for a one-handed keyboard and mouse. Having the ability to set your arms at any angle makes gaming much more comfortable. Those with gaming laptops will also appreciate these pads.  There are some drawbacks, though. In general, these gaming keyboards aren't designed for games that use keyboard shortcuts extensively. There are not nearly enough keys on one-handed keyboards, so you're probably better off using a standard keyboard along with your gaming keypad.