If you are mobile at all, the chances of you having both a laptop and a desktop are very likely. Laptops have cramped keys on a keyboard that you cannot rearrange separate from the screen meaning that you cannot independently position them for maximum comfort.
There is an article about converting an Acer Aspire One netbook into a desktop, and frankly that same method can be used on laptops as well, though the specific steps may be different.
Check it out. It may help you to eliminate the cost of yet another gadget in your life.