When to use Collection.find disableOplog

In Meteor 1.3, there’s now the ability to turn off oplog for certain queries:

I was wondering when this is worth using.

When users don’t need to be immediately updated then disableOplog can be used. But is it always worth using in such a case?

The docs say:

Disabling the oplog can be useful when working with data that updates in large batches.

If the data rarely changes, is it still worth using oplog then?