I was thinking that there ought to be a better way for both you and Seeed to make something on the boards (or kits) within their existing structure. My initial point was simply that the board's awfully small to be $7->$10, and hence not a great value for me personally. However, if they're the 5 remainders from your Propaganda order , of course they're going to want to get $6-7+ for them, but that's their issue.
However, if you were inclined to run more of any similar design, I'd think that more people would be inclined to get one @$7->10 if they were laid out to support what you've got there already, plus perhaps a few of temp sensor, ADC, DAC, digipot, etc -- especially since Seeed probably charges about the same anyways. Ultimately the reality is that a PCB is only a convenience here because these particular parts are trivial to wire-up. So the value has to be there by having it be as useful for as many test devices as possible, or if it's going to be assembled as a long-lived educational tool. In my mind, if they'd just let you step-and-repeat the original design even five-way, you'd both have more to sell/give away and net more on the deal. However, I know that that's not how they want to do it. :-(
I was personally more interested in the PCB because I already have (samples of) the EEPROMs waiting to be spooned by my v3 BP. For $4, I'd house my one or two devices in a socketed PCB to keep my breadboard clear, but not for $10.
Don't let me discourage you from spending $49 just so that they have something to sell and you to give away, because the economics of that don't scale particularly well.... -). I was just trying to find a win-win-win for everyone, and am not sure that $10 for that particular PCB is it.
