That almost makes the HP 15C Collector’s Edition’s $120 price tag (you can pre-order it in the UK for £95.83 with delivery in July) seem like a bargain, until you remember you can now buy a ...

This calculator shoe-horned itself into the market when the HP-35 was king at a sticker price of $395 (around $1800 in today’s money). The goal was to undercut them, a target that was reached ...