Re: Service Packs stopped making sense years ago
No, Service Packs also result in new version for OEMs to install. If you buy a machine today with Windows 7, it's going to be the SP1 release. This makes a new machine a bit less vulnerable when first fired up and getting the latest update installed. It also means a lot less to download and install for the updater.
Enterprises don't care about this because they roll their own images. They can add updates to the image on whatever schedule makes sense to them. They also have infrastructure for handling new updates better than individual consumers.
Where the Service Packs save a lot of time is for someone like me who does work on individual consumer and small business systems. If they've screwed up the machine so badly the most practical course is wiping and restoring the lot, and if it is a big brand OEM system, I'm not going to install the older version the machine shipped with and install a massive amount of updates and SPs. I'm going to install from the OEM most recent version of the OS for that machine. Those versions recognize their brand signature in the firmware, so there is no issue with activation.
So, if someone brings me a thoroughly infest Dell that shipped with XP SP1, I'm going to rebuild it with XP SP3 and save a bit of time. It's a convenience to people working at my level but the lack of a Win7 SP2 is not going to be a major problem. For starters, machines needing to be completely rebuilt has come up a LOT less in the post-XP era. This means less income for me but I'd rather make my money helping people set up and understand new stuff for their business than do repairs. An SP4 for XP might have been nice to have but I'm not the one footing the bill at Redmond.
I expect there will still be things like roll-ups that combine a bunch of updates. If you look at the history of any OS, you'll see the patches tend to be focused on a small critical set of files. Installing 100 updates on an old version of XP can mean the same file gets overwritten with a slightly newer version may times, until finally arriving at the most current version. (At least until some obsessive figures out a way to break it that has been there for ten years but was never discovered before.) So why not just cut to the chase with a rollup that is essentially a mini-SP focused on a single portion of the system?
Updating isn't the same process it was during XP's reign. It used to be common to be brought machines that hadn't been updated in over a year. That just doesn't happen much with the post-XP versions of Windows.