The 200-in-One kit is still made, and it's still pretty good, with an exceptional manual.
For anyone who buys a modern version of the kit, you'll need to change the LEDs (which are behind a white diffusing panel and so faint as to be almost indistinct; the fix is to scrape away some of the white coating from the inside), and the "filament bulb" which has now also become an LED of negligible brightness back to a bulb (note that it is supposed to be able to shine on the LDR, so as to make the "Electronic Candle" work).
Combined with an Arduino starter kit, it would be ideal.