What's the point of 10(?) episodes of woodcraft VHS now?

If I understand correctly, there's 10 episodes of woodcraft. If you spent the time looting VHS stores this would help you ALOT with levelling carpentry. But I've heard you can only get to lvl 3 using Shows/VHS, so why keep so many if after the 2nd VHS they're basically redundant? If I'm wrong and they still work let me know so I grab them next time I'm in Muldraugh.