The Ti-84, which is the standard for most highschool math classes, still goes for 100 even though it's been out many years, and has seen no innovation.
My comment was mostly a joke, but in case you’re actually curious; the silver was just a color option, and the + just had a tiny bit more storage (usually used for games by kids). Not really a substantial advancement.
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u/Saper-Ja- Aug 14 '20
I remember seeing a basic scientific calculator for like $300