I havent done it yet but that's always a tricky one, that I think becomes even more difficult when some relatives are so far away. I think because of this, there might be more of an excuse to go on your own home. when i was in a long term relationship with my ex, we always went home separately. but now married, it has become an issue. i'm still trying to figure it all out myself. If the in-laws knew you were staying home, it might make things more tense, I'd use the sick card.
@Albatross @historyenne I dont think it's odd at all. Some families make a very big deal of out of this and it can turn into a huge mess. for instance, I'm so far from my family, yet when I went to go visit for christmas, my MIL started crying in front of me and the tension was there for months. Just watch the Everyone Loves Raymond episode, says it all.