So sign up for the mailing list or come back when they are more ready to talk money.

Simple rule of FAQs: if you don't know, say you don't know, and stop. Don't then go on to tease about how people could look up the component costs if they really want to, because are you also going to let them guess as your production overhead and the profit margin? No. Just say "we don't know". Or, at this point, after limited runs, give a real indication.

I guess that's an old habit from maintaining open-source projects, fully disclosed & all transparent policy sometimes make things overly complicated. My apologies for the bad writing ;-)