I think it's a bad decision to call the game off. Unless the squad has family who have lost their lives I'm not sure they need to be there, it isn't like they are part of the recovery teams searching for people. Surely it would've been better to play the game, use it as a fundraiser (take a percentage of the gate like the Warriors are doing), have donation gatherers at the ground as well. Also give the poor people of Christchurch something else to think about on Saturday night.
If they want to be with their families it seems like it'd be a good opportunity to take them away from the area and bring them to Wellington.
In saying all that my condolences goes out to all those affected, absolutely heartbreaking to watch/hear about it.
To the above, I guess they could play them at Tasman's home ground up in Nelson, or QEII like someone else mentioned.