Why are the evaluation kits so expensive?
The design is targeted on 15 euro/node on average. The kits that contain an access point are relatively expensive because those costs are divided over just a few nodes. But it is intended for a whole net with dozens of nodes! Unfortunately this is the most expensive part of the system. But the more nodes you have the less it costs per node. Furthermore, the target price is only achievable when the nodes are built in large quantities. The mini evaluation kit does not fulfill that requirement if you build it by yourself. The more people that join, the cheaper it gets! And, last but not least, over 25% of the price is taxes and shipment.
