Pricing Strategies

Chapter 19 talks about pricing concepts and strategies. There are many different options for pricing strategies including:
Penetration Pricing- Start off with a product with a low price, and as customer base increases you can jack up the price.
Optional Pricing- A company would sell optional products with a main product to help with sales.
Premium Pricing- A price is set very high in relation to aa luxury product.
Competition Pricing- Setting the price of a product to that of your competitors.
Bundle Pricing- A company bundles together multiple products to sell together at a discounted rate.
Skimming Pricing- A product starts off at a high price and goes down over time to reach a larger market.
Psychological Pricing- The seller decides the price based on what they think a consumer will pay for the product.

Some real life examples of these definitions include:
Penetration pricing- Dish Newtwork will offer a satellite dish to its customer at a low rate, and then once the market increaed for there product, they would increase the price for the cable or satellite channels.
Competitive Pricing- In most retail stores such as Target and WalMart you will see adds about having the lowest price. Some even have little print that says "Compare to Targets price at $X.XX".
Skimming Pricing- When XBOX and Playstation come out with the Xbox 720 and Playstation 4, the prices are going to be very high. But as time passes the product will start to fall in price. For example when the PS3 came out it cost around $500, and today you can purchase a PS3 for around $250.

When thinking about all of the pricing strategies, one jumped out at me. Psychological pricing seems like a companies best way of making a profit. Companies price things different to get the consumer to have a different reaction. A company would market something for $10 but price it a $9.99. For some reason this makes consumers want the product more because it is cheaper, when really it is not. Why do you think psychological pricing is so successful in todays market?