He could splurge and get the deluxe starter kit at only $3K it has all 54 dies.
http://www.accuquilt.com/go-shop/sta...arter-set.html
Ok, now that we've had a little bit fun of fantasizing about geting the entire set. Practically, think about what patterns you do now, which pieces are you cutting the most and get those. I think at least a 2.5" strip to make your own jelly rolls. It comes with a starter die that has 3 shapes.
Do you like applique? or piecing? That will help you decide what dies you can use.
The big drunkards path die is wonderful, there is a notch to help you piece the sections easily. The small one I find not as great.