Question About Which Flight Simulator Game To Buy?

I have a question about which game to buy.



http://www.windowsmarketplace.com/results.aspx?text=microsoft%20flight%20simulator%20x%26amp;tabid=1



I already have the regular Flight Simulator, however, I would like more. Do you recommend buying the Microsoft Flight Simulator X Deluxe, or the Microsoft Flight Simulator X Acceleration Expansion Pack. You can click on the Learn More part to learn more about the games. I have a Windows XP computer. Thank you.Question About Which Flight Simulator Game To Buy?
Go with the Simulator X Acceleration Expansion Pack