There are some people who can't deal with typing on touchscreens, which is why the TouchFire Top-Screen Keyboard is the better way to go.
What's interesting about the TouchFire Top-Screen Keyboard is that there's nothing actually technical about it. Instead of the standard high-tech attachments that require the tablet to be docked, this accessory simply slides over the screen. It basically provides the user with the physical touch of a keypad by having the individual place the item over the virtual keyboard. The TouchFire is secured by two clips on the side so that it doesn't slide off as the individual is using it.
The TouchFire Top-Screen Keyboard is a nice simple solution that can be way cheaper than the expensive accessories on the market.