I've used OSX since 10.0 up to 10.5 and classic MacOS before that. I've never upgraded to 10.6 and do not plan to do so (I got Thinkpad and Windows last summer). I remember times when dlopen/dlsym didn't work (later it did); never managed to build some command line utilities and other required porting effort; macports was never functioning properly; Aquamacs ignored my customizations; was there X11.app release that did work at all?; no jdk6 for ppc; etc.
From proprietary side: you could have either Office 2004 for PPC running in emulation and working macros and custom language dictionaries; or intel Office 2008 without these two things. Since switching to OSX, the Adobe suite got worse and has distinct second-class feel compared to windows version.
I had some favourite software, that was originaly developed for classic MacOS (both m68k and ppc) and it does not work on modern Macs. Even software that was updated for OSX does not work, because the installer is for classic and then the updater updates the program to carbon (or whatever) version. With every switch in OSX focus there is software that is getting lost (with switch to intel, we lost some. With switch to 64b, we will lose more due to no Carbon).
In short, in all those years I was using OSX I got fed up and made a full circle (dos/windows -> linux -> mac -> windows).
From proprietary side: you could have either Office 2004 for PPC running in emulation and working macros and custom language dictionaries; or intel Office 2008 without these two things. Since switching to OSX, the Adobe suite got worse and has distinct second-class feel compared to windows version.
I had some favourite software, that was originaly developed for classic MacOS (both m68k and ppc) and it does not work on modern Macs. Even software that was updated for OSX does not work, because the installer is for classic and then the updater updates the program to carbon (or whatever) version. With every switch in OSX focus there is software that is getting lost (with switch to intel, we lost some. With switch to 64b, we will lose more due to no Carbon).
In short, in all those years I was using OSX I got fed up and made a full circle (dos/windows -> linux -> mac -> windows).