The important part is what you parenthetically dismiss (in volume).<p>I <i>know</i> they&#x27;ve been around in volume for years, but most of the stuff I build doesn&#x27;t come close to triggering that kind of volume. Therefore, the guy who wants me to send data from his forklifts to a central server in the warehouse can get it done at a cost he can more easily stomach when the hardware cost is under $20 as opposed to being around $100.<p>Price matters!