Its worth the trouble you save for $30 or whatever it is each book costs. I will be heading down to the GBC next few weeks to do my buying and the Pitching Aces book is always at the top of the list. The Insights isn't as valuable to me, but I still buy it anyways. I figure for most of us each of these costs us about an hour of our salaries and there is little doubt you will save an hour of time with these handy during the long baseball season.
