Most underrated programmables

[HP67]

There was a surplus sale at a university in Michigan, USA a few months ago. They sold 48Gs for 15 USD and 48Ss for 10 USD. I got a few 48Gs, one was in unused condition and the other was the instructor's personal model (had his name/address label on the back) and was obviously opened and put back together badly. It creaks and groans and looks like it went through an automobile accident but the screen is flawless and it still works like new.

48s in general today aren't good values because in average condition they're priced about the same or higher than a new 50g. If you get lucky like you and I did then you can't beat 'em!