When I started working full time exploring issues related to the use of educational technologies in developing countries about a dozen years ago, many ministries of education would express their desires for introducing computers in schools by saying things like 'We want something that can enable students and teachers to do x and y and z'.
More recently, this conversation has switched in many places, as increasing numbers of ministries (and especially their most senior officials) have initiated their related planning processes by saying that 'we need a computer that costs $___'.
The implications of this shift on planning practices in many places have actually been pretty profound.
Now, it is true that, in the 'early days', the initial rationales behind putting computers in schools were expressed in rather vague terms (e.g. 'we want children to access the world of information on the Internet'). That said, such formulations often presented a useful starting point for discussions of what the educational goals of a particular ICT program for schools might be. For the past half-dozen years or so, however, it appears to me that there has been a much greater focus in many quarters on *only* the retail prices of various devices, with discussions of what specific learning goals these devices are meant to help meet -- and how -- shunted to the side.