I'm always wondering about thoughts like this. Although there are likely a humongous amounts of low end devices, as a whole, how much potential return would you get from this group? This is a value judgment and I know many have low end devices for reasons other than monetary and just completely ignoring quantity may not be viable for certain investments, its just an interesting thing. It might be similar to the debate about the cost of handling credit cards vs cash. Cash has its own set of costs that are usually neglected. You could easily get more return by adding features than spending any time optimizing.