Yes but in this day and age, how many weddings are "local"?
Most people go off to college and meet friends from around the UK or overseas.
The last wedding we attended cost us well over ?2000 to attend when you add up travel, hotels (yes the venue of their dreams was the only place to stay without a 40 minute drive to anywhere with hotels so we had to suck it up and pay ?250 a night for two nights), clothes, gifts etc.
What about the person on MN who received the invite stating ?100 minimum gift voucher, no Coast dresses.
Is that someone whose wedding you'd be honoured to attend?
Would they be ok if you turned up in a track suit, with no gift and parked a caravan in the grounds of their stately home, because the onus was just on you attending their special day? I guess then you'd know if they were true friends or not. 
I'm just too practical I guess. When a wedding party (and I'm not talking about the ceremony, which of course is an intimate event) is all about the bride and groom, and not about looking after the guests I find it a little bit immature and selfish.
But then people are either all for weddings or not bothered. I have enjoyed some, but I really don't get that excited about them. So I will have to agree to differ...