To know, or not to know...that is the question

When Jen and I attended our first round of pre-natal classes, we were amazed at the vast majority of expecting parents who knew the gender of the impending child. In fact, we may have been the only ones in the group who were waiting for the surprise. Granted, it was a small sample, but it does seem that most folks find out early. We took the same approach for Reed, and it also brought a little extra joy to the nurses in the delivery room, as they don't get the chance to be surprised as much as they used to. In terms of probability, you hear many different interpretations of data for what is pretty much a 50/50 coin flip. In cases such as ours, with 2 boys already, some believe that the odds of having a third boy greatly exceed the chances of a girl, but science and data do not support this theory, with only a slightly greater chance of the 3rd child being of the same gender as the first two. Excluding any "old wive's tales" (such as those featured on "How I Met Your Mother" a couple of weeks ago, with pickled herring and lemons), there may be some correlation to temperatures (sounds like how the sex of alligator eggs are determined). Back to the original question, which is...does it make sense to know the gender in advance? With 2 boys, there would be very little needed in terms of clothes and toys and anything gender-specific. A little girl, however, would need stuff that we just don't have...but she would not need any of that for quite some time, since we have plenty of gender-neutral infant clothing (and I have been outvoted on yellow being a "girl" color, with most thinking it is neutral). The plan right now is to remain surprised. I think it is a good test of willpower, as well as preventing the worst-case scenario of having an ultra-sound misread, and delivering the opposite of what was expected (sounds somewhat traumatic to be expecting a boy, and have a girl pop out, but even more likely to cause some confidence issues down the road if the opposite happened, since in the first example a "leg" could have been misread, but what do you tell a little Johnny about not being able to see "it" with a high-powered microscope?). While it is unlikely that Brock will need to share his birthday, it is possible, since we have a due date of June 13 (timed it right after the music festivals). Both boys have been about a week early, so we expect the same this time--although maybe girls prefer to be fashionably late, to better prepare them for adolescence. While we usually try to get away for a week in March, not sure how up for travel Jen will be at that time, so maybe we will try to do a short trip between Thanksgiving and Christmas, visiting some zoos within a day's drive. So the new poll question is posted...if you have 2 kids of the same gender, would you find out ahead of time? Just curious.