I might donate some if the focus group was comprised of a fairly wide range of individuals from different backgrounds. I'd recommend drawing from more than a single geographical location, as well.
I suppose forming some kind of online focus group would be the most cost-effective solution. Though, I'm not quite sure what sort of demographics we'd want to aim for (if any particular ones), or how we could recruit people for the group in a cost-effective yet relatively unbiased way.
Does anyone happen to know of an existing non-profit group or organization, hopefully with a little more experience in this sort of thing, that we might be interested in helping out if we were to raise the funds? I know that many organizations accept Bitcoin for donations, but are there any that endorse increased Bitcoin adoption?