Which innovative product marketing strategy did Texas Instruments use to ensure the TI-84 graphing calculator maintained its premium price point (~$100) and market dominance in education for decades?

Texas Instruments revolutionized mathematics education with their graphing calculators, creating a product that has maintained remarkable market dominance for decades despite minimal hardware updates. This poll explores the fascinating business strategy that transformed a basic computing tool into an educational institution and retail powerhouse. Test your knowledge about one of mathematics education's most enduring product marketing success stories!

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Establishing direct partnerships with textbook publishers to feature TI calculator examples in mathematics textbooks
Implementing a subscription model where students pay annually for access to calculator features
Creating artificial scarcity by limiting retail distribution to specialty electronics stores
Providing significant hardware upgrades every 2-3 years that make previous models incompatible with curriculum requirements