Pre-Natal Vitamins

Well, I've just taken the last pill of my first bottle of prenatal vitamins.  Everyone knows that expectant moms need lots of folic acid, but I've been reading a lot about DHA helping promote brain and eye development in a fetus.  I intend to research this further, but haven't gotten around to it yet.  I am taking a prenatal with DHA, though.  What can I say?  I've always been a sucker for "emerging research".  I've chosen a widely available brand and buy mine at Walmart since that is where the best price is available.  The brand also offers a rewards points program.  I get 55 points for every code I enter off of empty bottles.  At 500 points I get a $5 off coupon.  Well, I guess it's better than nothing.  And the $9.44 per bottle I pay is by far the best value when you consider that pre-natal vitamins with DHA sometimes retail for over $60 a bottle.  Ludicrous.  I know that everyone wants to give their baby the best start in life possible, but there is a not-so-fine line between wanting the best for your child and being taken advantage of by pharmaceutical companies out to prey on your good intentions and guilt you into paying too much.