Sorry but this is not true.
A full install, all updates, programs and all your settings (and settings for each program) even on a top of the line system is still a good few hours. Restoring from an image takes <15 minutes. Also my images are done after a clean format.
1. It takes about 3x longer to install a service pack then to integrate that SP into a new install disk and install the OS from it.
2. Installing all the updates adds time but they keep making rollups which make it quicker and smoother.
3. Installing all programs back defeats some of the purpose of doing a "reinstall" in the first place. They are all going to be outdated and potentially abandoned for other programs and will require that you upgrade each program, which takes longer then just installing the latest version would (since you typically have to uninstall).
4. And settings are trivial.
5. It is significantly less buggy to install a clean install of latest SP, and then upgrade to current rollups. MS doesn't test every combination and I have seen several times where installing one specific patch after another specific patch (which got pulled) caused windows to become corrupted. (on multiple computers

). So I find it safer to go that route. This is also why I don't integrate patches into install disk (even though I can and have done it before), only service packs.
Images are also a lot more important in the corporate world.
As it should be... although often people are lazy and use images improperly, installing an image from somewhat different hardware which can cause some issues. But considering the context I asked it in, I was obviously not referring to corporate use but for a person making an image of their single PC.
I'm rolling out a new small office in the new year and if image programs still dont support GPT then I will stick with MBR.
That is a mistake. MBR is horrible and should not be used over GPT.
Also Acronis (at least) does not alter alignment, meaning if the partitions were 4k aligned when imaged they will be when restored.
That is good, although it can still cause problems if you are changing out the drive.