@Watchman, by now you should know that the Kenyan Telecom sector is, unfortunately what it is. As you research more into setting up your own ISP, you will discover many issues that show the total failures of protocol and implementation. Reliability and service delivery is something you cannot count on unless you operate your own network while ensuring the right people manage it. Wimax is far capable of faster throughputs but the segmentation loads ( kenyan style ), and as @Riyaz describes, is the limitations in the marketplace. Most Wimax deployments were meant to be done in a Point-Point and Mulit-Point scenario, Kenyan Telcos went to the next step of producing a shared platform ( think of Wifi ) that would not produce better throughputs. The end result of the shared system was that it is virtually impossible for any Wimax operator to sustain reliability and support of such systems. If you are serious of setting up a proper ISP with throughputs and service levels to a higher degree of depolyments, you need to ensure that you avoid the pitfalls of the Kenyan Telecom sector. Whether the market place will think price first and quality later is another issue because internet costs is supposed to be much cheaper now, but are they really? If an STM1 155Mbit/s cost now is 38,750USD per monthly, what will be your target market? Also keep this in mind, the throughput figures in tehcnology are often over rated. Take your USB 2.0 connection, the theory put it at 400Mbits/s ( serial data transfer rate ) but in realtime scenarios I've never seen it exceed 25Mbit/s rates. HTHs. :-)