I am sure any bigger bosom-ed lady will know that not only is it more material that is needed but also a bigger price tag in order to help keep your ample assets from hitting your knees.
I had heard people talk about the TIT TAX phenomenon before but because I never shopped in the less than a champagne glass full sections of lingerie departments I never noticed the pound or two difference in the price. Now that I have started doing Avon it is very much apparent that there is indeed a tax of the bigger busted woman. As soon as you pass the Double Delights size and hit the Enormous, Feck me and Humoungous grading of boobs then you are indeed hammered with a surcharge.
IMHO I believe that bra designers have small boobs or are men who's other half has small boobs, so they whack on the extra charge to help fund their breast enlargements. Yip they are jealous. Maybe when they increase their bust size they will realise that we ample bosom-ed gals do like pretty and funky underwear.