Yeah, last few devices I've bought had something very close to AOSP with only a minimum of extra apps installed, apps that aren't causing me any problems. Android itself doesn't vary a lot between versions any more, the chances are the version you have varies little - from a user's point of view - from the latest greatest. This is a far cry from the early days of Android where:
1. Every phone had a heavily customized version of Android, in part because stock Android wasn't very pretty, but those customizations were usually horrible and bug ridden. As an example, my T-Mobile Slide 3G's dialer would crash if you changed from portrait to landscape.
2. Android itself was barely feature complete. Third party tools were needed to provide a decent launcher, decent keyboard, and so on, as well as tethering and other features carriers were nervous about.
It just isn't as important any more.