I'm a FS9 user mainly because I have spent so much money on add-ons that I would be mad not to find them anymore in FSX. That is the main reason, most of us still use FS9.
You need to come up with a better excuse than that. 
With the exception of a fistful of developers, any scenery you've purchased for either FS9 or FSX have the other version available free in your download account at whatever store you purchased it. Your only expense is the copy of FSX, and the Gold edition is $30 at Amazon.
Indeed, well put. I for one hope FSDT just moves on and forgets about FS9. Its over 8 years old, let it RIP.
FS9 is only as old as the latest thing released for it. Why don't YOU RIP 
man, i was starting to feel like i was the only fs9 supporter left...it gets lonely you know...at least we've still got a few fs9 supporters left. i just never liked fsx because, though i've used it and the capabilities on fsx are greater than fs9, the fs9 addon library is huge and much more developed than in fsx, where the addon library is a bit half done. i mean, the pss 777 and 757 panel, the overland model, and a good zayan shakeeb soundpack, i can't do that in fsx.