Question about Philips Hue Play + 2 extension

You probably looked at the extension. The extension comes without a power adapter and is therefore cheaper. However, you can't just buy 3x the extension because you need a power adapter for up to 3 lamps. The equivalent to the "Hue Play + 2 Extension" package would be 1x the Hue Play base and 2x the Hue Play extension, which would be a bit more expensive than this set.