It is a shame that the OP argument is poorly argued, because actually i do agree with him that games have to hold some sort of value. It may be amazing for the consumer that games drop from £40, to £30 to £19.99 in a matter of months, but it is certainly not good for the industry.
I do think a middle ground needs to be found. Perhaps, releasing all games at £30 and refusing to drop the price and hoping that people buy more games. But that isn't is a sure fire way of people picking up more games. After all, people only have a limited amount of time in the day, they have other commitments, be it school or raising a family. And dropping the price means that games have to sell even more copies to make their money back. The other option is for developers and publishers to make games within their means, but i think we, both as consumers and them as developers are way past the point of no return with that one.
It can't be good when games like Titanfall 2 or Watchdog's 2 drop so much when they need to sell 4-6 million copies (presumably) at full price just to break even? Yet we consumers are so demanding of graphical fidelity and obsessed with power, frame rates, and resolution. We whinge at Micro-transations and Dlc, which a majority of developers need to utilise to earn that profit (Shock horror! enables them to employ people, and make more games (boo!) We kind of find our selves in a impossible situation. I wouldn't really calll this a sustainable business model.
I kind of get the impression that we don't actually value games, we just see them as disposable pieces of junk. I don't know wether that is our fault or the publishers, ( i guess the publishers because the customer is always right you know)
The above may seem snarky, but i woken up on the wrong side of the bed

, and i know the OP arguments is poorly conceived, i just found it odd that quite a few people were jumping on him. I know that is probably just in regard to his argument, but the actual concept of game value is one thing that needs to be address in the industry.
Just seems to me that the rush to the bottom pricing that as reared it's head again, especially on the back of quite a lot of big AAA Titles bombing, and people being upset that a game costs a Big Mac and Coke on the iPhone store.