Peleton is popular because it's going for a very different market. Those are people who do spinning classes, which has only a very small overlap with spinning classes.
In particular they don't really look for the same things that someone who buys a smartbike is looking for. Also I would add that in terms of build quality, spinning bikes are much better IMO than tacx or wahoo.
A bit of a tangent, but it's a shame that Kettler bikes never became popular, their hardware is top-notch (proper cycling bar, campagnolo ergopower grips), but they never implemented ANT or bluetoothsmart so were not compatible with Zwift and instead tried to push their own platform.
In particular they don't really look for the same things that someone who buys a smartbike is looking for. Also I would add that in terms of build quality, spinning bikes are much better IMO than tacx or wahoo.
A bit of a tangent, but it's a shame that Kettler bikes never became popular, their hardware is top-notch (proper cycling bar, campagnolo ergopower grips), but they never implemented ANT or bluetoothsmart so were not compatible with Zwift and instead tried to push their own platform.