That sucks that only workbook 2 is there. A quick search on the web didn't turn up workbook 1. I don't know exactly what ICs come with the kit but most standard logic ICs you can get for $1 maybe less so I don't know if the parts alone are worth $50. That point aside, the time it would save you just buyng the kit may be worth the price difference in your mind. I don't want you to think I'm discouraging you from getting this. I just wanted you to know that there's other options but I'm sure you'll learn from this kit. If you're really set on it, and it seems that you are, at least look around. **broken link removed**it is for $25 less.