For many of us in United States, the TI-83 Plus is the quintessential (pre-college) calculator. It was required for many classes (e.g. AP Calculus) and the $100+ price tag 10+ years ago did not do wonders for the wallet. Still, the multi-line interface, matrix operation capabilities and games such as snake made it a versatile instrument pre-iphone.
Yet, as an electronic system in a highly competitive field, why is the same TI-83 Plus still almost as pricey as a decade ago?? Keep in mind that with the same money, one can buy a 4th gen ipod touch with a Color screen, gigabytes of ram and streaming video+wifi and that the same smartphones a year from now are probably worth far less (try selling the older motorola razr's now). This extends beyond phones to vcrs (remember those?), stereos etc.
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