*sigh* This is a hard one for me. DH & I had planned to go on vacation last year and then received a Save the Date for his cousin's wedding. Very formal. 4 hour car ride away (even though they live 5 minutes away from us). With three kids, we felt that we would be best served NOT going to the wedding & continuing on with our vacation. But, we wanted to do something for them. Throw a shower, something. Well, all He** broke loose when we asked about it. Not from the bride/groom (who I honestly still don't think cared that we were there), but from the extended family. So, we changed all of our plans & went to the wedding, kids in tow. (Yes, they were invited. No, I didn't like the idea of bringing them to a very formal wedding. But, FAMILY!!!!)
At our wedding, most of the family on both sides was there, but there are some who weren't able to make it. (Some cousins live a multi hour plane ride away. Some were nearby but had other priorities that weekend.) For us, it didn't mean anything other than they needed to be elsewhere. We still have good relationships with all of the extended family. Our wedding was somewhere between 100-150.
ETA: Now, if it's a sibling, that would be different in my mind.
-Kris
DS (9/05)
DD (8/08)
DD (9/12)