Oh, come on. The whole thrust of this kind of pricing is to create higher prices for that segment of the buyers in a market that will pay it. For the most part, a mass market without information about segments of the buyers will only bear some "average" price. The extra information monopolies have about their consumers let's those monopolies create a few higher price points. This isn't about helping consumers.
I don't see absolutely any incentive for a company to spend more on tracking technologies (whatever their nature may be) in order to lower their profit. So guess who gets the proverbial shaft in this equation?