But it's obviously not invaluable, because women aren't skipping their car payments, or working extra shifts, in order to buy a $350 bra.

In fact, as I understand it, most women aren't even taking the time to inform themselves about what a good fitting bra feels like(which is free), let alone getting ready to plunk down hundreds of dollars for one.

If you compare invaluable to invaluable, your result must be false, likewise if you take statements too literal as far as every woman was concerned.