Offer to take several random synths as ambassadors. The collective does not know how many, or of which color, but understands that not only will their common knowledge of other beings grow, their own will be saved.
I hate to say anything in defense of Starbucks (as a small Coffee House owner), but non-dairy costs more in general. It's not like they are upcharging because they want to stick it to the lactose intolerant.
I totally agree! They've come a long way, but making it easier to use can only help grow support for the project.