Have you considered running tests on your marketing copy and doing the math on the hard data you get out of it?

I think I understand your point that you're not interested in having the type of customer who would be scared away by 'picodollars' (as opposed to finding it amusing) but you should at least test it out and get the numbers to verify your hypothesis right?

(As a bonus, if you're right, you get to shove it in the faces of everyone else. If you're wrong - well congratulations - you just increased sales)

Unless you're doing this more as a principled stand (which is fine I guess).