I bought my X740 in February of 2013. I had the choice to wait another month and buy a new X7 series, but I opted out of that. I personally feel that the machine has been cheapened down in some aspects. The dash area along with the hood looks like a lower quality product than the previous models. I like the look of my 2012 better than the new machines. I have a larger fuel tank in my machine too, versus the new 2013's.
The only gripe I have is the deck removal can be a pain on the older X7's, just like some others have mentioned. I hardly take my deck off, so for me, it wasn't a deal breaker.
What was left of the 2012 X7's went FAST this year. I purchased the last X740 machine in my entire Province. That was only 2 months into the year too, not even spring time yet. When I was shopping, they only had gas powered models left. The salesman told me anyone who knows anything about these machines is grabbing what's left of the 2012's, especially the diesel models. I didn't want to take the chance of someone else scooping this one from me, so the day I went to look at it, I signed the papers on the spot.
I landed an incredible price on my machine, but even if I hadn't, I think I still would have opted for my 2012 over a new model.