This just in, from the "seeking to understand" department...
"As I said before, each design will be limited to an edition of 200. That's it. No more. Once they're gone, they're gone.
I shall start with four designs, the "Hughtrain/Infinite" design above, the "Good for you" design and two others. As soon as one sells out, I'll introduce another. But there won't ever be more than 4 designs, 200 of each, available at one time...I think they might become quite collectable, in their own little way. I certainly have no wish to flood the market with them."
You have hundreds (thousands?) of cartoons you've drawn over the years. Of the four you pick at any one time, there will be some folks who like them, and pick them up. But isn't it considerably more likely that a far greater number of folks would want some other design that you are not producing?
By way of comparison, there's (frankly) no reason why an individual can't, say, grab one of the .jpgs of one of your cartoons, upload it to CafePress (or their local t-shirt shop), and make themselves a t-shirt of it. Once those images are out (and a lot of them are), there's really nothing preventing that. And if that individual is just producing that one shirt for his or her self and not selling them, it's likely you'd never know.
Doesn't the faux-scarcity path fly in the face of the direction things are going? Why not give abundant choice, and get the Word of Hugh out farther and faster?