800/900 Upgrade

Just when I thought that the 737-600/700 was the best that could get out of your 737s, I had to get the 800/900 upgrade. I really hesitated to get it, because I didn't really want to pay again for a new model that I hardly fly anyway (I usually fly the 737-700). You can imagine the look on my face, when I saw all new textures for my beloved 737-700 on top of the new features (fully functional VC, TCAS and all the other small improvements)!!! It wasn't clear on your website what *exactly* gets updated from the 600/700 series with the 800/900 upgrade, so......thank you, thank you!! That was money worth spent!