If you look hard enough and long enough you will always find a better deal. There are always exceptions if you want to spend your time on it.
What wotif does is give you a range of accommodation options so you have a choice. If you want to go direct to any one place then good luck to you. However, if you want to see hundreds of options all in one page then go to wotif.
The same issue applies to airlines. You will always get a better deal if you go direct to qantas, virgin or jetstar. However, if you want to see all of the flights from all of the airlines on one screen then go to webjet or lastminute.
It is the buyers choice.
WTF Price at posting:
0.0¢ Sentiment: Buy Disclosure: Held