I have been looking to buy a 1D X since its announcement, but where I live (in Switzerland) the camera is still not available for sale, although there are signs, that it may be coming soon.
Just recently I purchased a 5D Mark III. This makes it much easier on me to wait for the 1D X.
As soon as the 1D X appears in stores I will hurry to purchase one. Then the 5D Mark III will make a fabulous secondary/backup camera. I will also keep using my 7D for that bit of extra reach. My original thinking was to use the 7D as a secondary/backup camera for the 1D X, but I dropped that notion as soon as I had taken some night shots with the 5D Mark III.
The 1D X are starting to appear in the stores.
However, only pre-orders are getting filled at the moment. And only very very limited quantity has been sent to the stores. I pre-ordered my 1D X back in December... I received mine yesterday, and yes, I live in Switzerland as well.
I think it will take at least a month or two until they're in the store without pre-orders. If you're lucky, that is.
Will test the camera a little today after 4 PM and of course on the weekend. Damn, am I glad that my girlfriend bought herself a 7D - we can go and shoot together and I won't have to hear any of that "I should get priority, not the camera!!!" stuff.
Tried it out a little yesterday and with the 16-35mm f/2.8L II it's awesome. Also I love the LCD screen (1Ds Mark II LCD sucks big time against this!!!!) a lot.
I'm a lucky man.