Unless I particularly wanted to go to Chile or money was no object, I wouldn't go. I kind of regret going to my brother's wedding in NZ. The whole trip sucked and NZ was not a place I had any desire to go. None of his friends went, only immediate family. You could take your friend out to dinner to celebrate when they return if you like. It would be much cheaper.

Having said that, Chile sounds like it could be fun. Different to the usual Bali/Thailand/Fiji holiday.