What's the point in region locking? Provides actual barriers between consumers to allow for greater price discrimination, thus enabling firms to sell content at prices much closer to profit maximising than otherwise possible.
Price discrimination doesn't just happen geographically. Most places offer discounts for seniors and children, for example, this isn't out of the courtesy of their hearts, it's because they want to sell the product as many times as possible at the highest possible price. Seniors/children are less likely to have jobs, and, as such, will only buy at lower prices, whilst adults are likely to have jobs and thus more willing to pay the higher price.
Price discrimination also occurs at different times (peak tickets versus off-peak), dates (think how much more expensive certain things are in the summer), a customer's own buying trends (clubcards at supermarkets), and even down to laziness: at Liverpool Street Station in London, there are two Mark's & Spencer's supermarkets: one within the station itself, the other is a 2 minute walk down the road, both shops share about 80% of the same products, yet the one in the station itself is, on average, 15% more expensive than the one down the road.
Price discrimination is a "dick move", but it allows for a much more perfect market, and, at times, you will find yourself on the lower end of the pricing stick.
