Years ago, I bought a USB wireless keyboard, so I could hook up my laptop to my TV by HDMI cable and use the laptop as a streaming media player. The keyboard cost about $20 at Target. I have gotten so much use out of this keyboard that I have worn the letters off most of the keys and now I have to repaint them. Meanwhile, I have saved thousands of dollars in entertainment costs (no cable TV, streaming sports packages, free video games etc). I wonder how long this keyboard will last before I have to replace it. 15 years? 20 years? It'll be interesting to find out.