I want the opposite - I have a Samsung Gear S2 Classic and am thinking about either buying the 3G version of it, or the nextgen version of it (I wish they would include a speaker as well as mic on the non-3G version). I want the built-in speaker and cell connection and added functionality. Its primary use for me is fitness tracking (I've owned a Vivofit and it sucked, and the Fitbit I tried was almost as inaccurate and limited) and I find it is very accurate in its tracking my workouts and steps throughout the day. For the first few weeks I wore both during the day and counted my steps and compared - the Gear was very close to my count but the vivo was way off - over 1,000 more than my count and the Gear S2's count.
Another thing that is great is the GPS tracking - I keep that turned on and when I go out skating, walking, jogging, the distance tracking is usually dead-on and I can view a map of where I went after the workout, with my highest speeds indicated on the map, as well as nice graphs with heart rate and pace. Also, I easily get 24 hours on my watch, although since it has lithium cells I top it off as often as I can to avoid deep cycling the battery when it is not necessary.
However I do agree it would be nice to have low-end devices for folks who don't care about those capabilities. But, at the low end you're unlikely to get a large screen + good interface + sound + mic + bt + water resistance + good battery life; you're more likely to get just a couple of those features with the rest sucking or omitted entirely.