Which retail strategy has been most credited for the continued dominance of TI graphing calculators in the education market despite their relatively unchanged technology and high price point?

Texas Instruments' graphing calculators remain a staple in mathematics education despite minimal changes to their design and functionality over decades. This case study in product longevity showcases interesting retail strategies and pricing models that have puzzled economists and retail analysts alike. Test your knowledge about this unique mathematics product market and its unusual retail characteristics.

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Educational institutional agreements and curriculum integration making TI calculators a required purchase for standardized testing
Aggressive seasonal discounting and buy-one-get-one promotions during back-to-school periods
Annual model updates with enhanced computational capabilities that appeal to mathematics enthusiasts
Subscription-based purchasing model allowing students to pay monthly fees rather than upfront costs