FSX purchase - Standard or Deluxe?

What are the major differences between the FSX Standard and Deluxe versions? Just more planes, airports? Is there any more airport ATC communication or anything?

Trying to find out all the differences between the two versions. I've played the trial demo, love it and want to buy the game.

Thanks in advance!

Check out:
➡ http://www.microsoft.com/games/flightsimulatorx/product_info.html

➡ http://www.fsinsider.com/

➡ https://forum.flyawaysimulation.com/forum/topic/22676/flight-simulator-x-aircraft/#142736