I've always enjoyed watching games at night at home. However, for those that go to more games I can see why afternoon are good start times for weekend games.
As to back to back games against the same team: with travel costs up (fuel) it does make sense to play two games in the SAME city back to back. The Kings used to do that with Winnipeg years ago when both were in the Smythe division. They played 8 times but there were only two trips to Manitoba (same with the Jets coming here twice).