I have one at home – an old Casio Scientific – that I bought to do 6th form maths on. That was in 1983 and it still gets used regularly and still has the original Casio batteries in it.
Had it since uni. No idea how to use most of it, but it won’t die now! Just want a simple one that other people can turn on and use when they come over to my desk
I had the same one as TimP. It helped me get through my GCSE’s but only because I realised I could store pages and pages of notes in the programing section.
Whatever is the most recent scientific casio I can be bothered to buy usually, get a new one with cool new features every 4-5 months or so. Graphic calculators are a waste of money IMO.