Kriston, I saw that, too. Are the Bill Nye prices for the series? Why are there little checkboxes after each title? Didn't see how that affected the price. How many titles do you get for the $40+, and can you pick and choose through the different parts (as they are listed top to bottom in alphabetical order, so it's random which subjects are included in each "Part"). DS loves these, so I'd like to supplement what we can get from the local library.

Also, note, there are a few Bill Nye titles available on Discovery Streaming, but not the more entertaining titles.