His target price for the released product is hopefully $10 ( a good deal )
The $20 pledge gets you 2 licenses Cost Per License: $10 Additional Perk: Nothing
The $50 pledge gets you 1 license Cost Per License: $50 Additional Perk: Beta Access
The $100 pledge gets you 5 licenses Cost Per License: $20 Additional Perk: Immediate Access
And that's just a small analysis of those 3 price points. The higher points also seem a little off to me as well. It just seems odd to have the Cost Per License to vary so wildly, in my unsolicited opinion, anyways.
I understand trying to play to the draw of people wanting quicker access to use the tool, but his pricing model creates tiers that are counter-intuitive to people who want to contribute, but do not want to receive what could be perceived as a poor value for the cash they have available to contribute.