But even if you can convince yourself that it is just syntactic sugar, you have to have a long hard think about whether or not you are going to adopt the style. Adopting means going back and changing the code you have already written. Not adopting the style is not tenable in the long term - the new syntax is clearly superior to the old syntax, so there will be a lot of pressure to code the new way. This is particularly true when playing in Apple's backyard, as they have a habit of taking a nice new technology that is optional in one release, and then building on that optional feature for a next release.
For me, in this one particular case, I'll probably go with the new syntax, going back through modules that are already written and redoing them with the new syntax each time I have to touch one for a bug fix/feature.
I'm just getting frustrated because my project started about 18 months ago - I work on it nights and weekends, and I have to keep stopping work on the project and spending time adapting to new tools. The last 18 months or so have been particularly tumultuous. XCode 4 was a big change compared to its predecessors. I started using the garbage collector just to have it more or less replaced by ARC.
None of this is insurmountable, but as a one person, part-time shop with a fairly ambitious project, this is really starting to become painful for me, which is the point I was trying to get across, and I suspect that I'm not the only one to be feeling the pain. Perhaps I would feel better about deciding not to follow Apple on this one if I could be sure that that decision wouldn't mean me finding myself with a big code base on my hands that is unable to take advantage of the new hotness in the next version of Objective-C because I decided to skip this version's changes...