I went to a wedding last night, it was a real black hat affair. Separate seating, rabbis saying blessings to "eloheini," the whole deal. Now given all that, I'd just like to point out something that I'm sure we've all noticed but perhaps haven't really cognitized. I've been to a few weddings fairly spread along the Orthodox spectrum. But what really stands out is the unique experience one gets at a hareidi affair. The guests are so enthusiastic and they'll really dance until exhaustion.
Why is it that at a Modern Orthodox wedding, you'll see more people standing on the outside of the circle clapping politely than at a Yeshivish or UO wedding there'll be a lot more people in the fray? There's this sense of enthusiasm that's missing. Sure the guests are happy for the couple and will say as much but where is all the energy?
I'm not sure if there's any deep significance to this observation (it may not even be accurate since I have a limited sample group) but it's worth pointing out.