I have noticed that often in response to an obvious price error, ozbargainers appear angry when the price error is not honoured.
In any line of work, errors are made. Price errors happen. And at the end of the day it is as the company's discretion how they are handled. If they chose to honour the price error they can, provide a voucher, or simply cancel orders. It is at their discretion and I do not believe that it is fair to expect a voucher, because you capitalised on an obvious price error.
Some examples:
The Amazon deal was ~half of any previous price.
The Harvey Norman deal was $43 vs $399 for a grey import of the lens on its own.
At the end of the day, the contract of sale in some form or other (not a lawyer) allows for the company to only having created a contractual obligation on delivery of goods. That is my understanding.
So, why is there this attitude of an expectation of an obvious price error to be honoured?
Before anyone jumps to conclusions. I work at a HN store. But this post has nothing to do with HN specifically, just an example from today. This is across many stores.