Sales are a little bit less evident in things that operate in monopolistic markets (natural or not)... Which if you notice gaming, most things sold operator in markets with economies of scale, therefore there a few providers for one service. How many CPU manufacturers are there, how many GPU manufacturers are there, how many monitor manufacturers, etc. Like iPod's and most other electronics, if we live on the same part of the planet we will likely buy our electronics for about the same price.
An i5 2500k will likely never go below $180 or above $250 in price (yes, using an old processor, bear with me). We have knowledge of what the good does, and what it usually sells for so we can create an educated decision whether to purchase it or not. For example, if you bought this processor, you can go tell me, "Oh yes, this is a good processor, go buy it!".
The issue starts here. You go to a mall, and you see a pair of jeans for $300. Your friend bought these for $100 dollars when they were on sale, and said for that price they are a "good bang for buck". Now they are $300 dollars, what do you do? You have a few options:
1) You can buy the jeans for $300 and hope they justify the cost.
2) You can go spend hours looking in other stores or the internet to find similar jeans elsewhere that are cheaper because they are currently on sale.
3) You can buy cheaper pants that you have no knowledge of but they are $100 instead of $300.
It's almost hard to explain why it's so stupid... But do you see how a simple example like this makes it extremely difficult for a consumer to purchase his good? Wasn't initially the goal of democracy to create like a free-market with no barriers to trading... Instead all of this bullshit to consumers?
We understand there are different markets: Natural monopolies, oligopolies, monopsonies/oligopsony, workably competitive, and perfectly competitive markets. We know that the "best" markets in terms of benefit to consumers (which is the goal), are perfectly competitive markets... Why are we allowing sales to against what a perfectly competitive market strives to achieve. Sales should be banned.
If every manufacturer of a good had a legal obligation to say periodically how much he wanted his good sold for, and it had to be that way, there would be much more knowledge about the good's within the market. Because prices fluctuate so widly with everything (home renovations, clothes, jewelry, body-care products, sport equipment) people can never decide on what is the best (two graphics cards with the same specs, but each week one is cheaper than the other, which one do you go buy if you ask someone)... And it is not only that. It is also important to take into account that by doing this it is also a lot easier to consumer discriminate. I could get into price discrimination, but I assume people who have any arguments against me already know what it means, and not the mention it could start a long topic in its own regard as well.
So I did quickly explained why sales are bad for consumers. And now simple logic states this: The consumers elect the government, and the government is there to make the lives of consumers better. Disagree with me if you will, but what I say is true. In a democracy you will generally vote for the party that shares your interests and represents your views on what you wish your country to become. So why don't consumers just say, hey, no more sales. "No store is allowed to put any discounts on goods ever. There will be prices set monthly or set once every two months, these will remain constant... And they will be clearly labelled for all customers to see." Obviously the regulation isn't as easy as that to put into place, and I know there are a lot of factors take into account... But all of these factors seem workable, and overall this will yield in the long-term a benefit to society.
So I am wondering what you guys think about why sales have not yet been illegalized, as well as what complications are preventing them from even being considered illegalized. This is such a broad topic and I don't feel like I got to cover it like I wanted to, but I would love if some people offered some inputs and we could have a discussion/debate going - it would also allow us to centralize thought on more specific points.