24dB/oct Oops, I mean 12dB/oct variable Sallen-Key filters can be made with an op-amp, two caps, and a 2-gang pot for each mono filter. If you don't need the filter frequencies to be variable, then you can use plain resistors. Even easier.
I would imagine a five-way filter is only useful as an academic exercise, outside of synthesis applications, so as an analog circuit, it's artificially complex just by the sheer number of filter stages. But even still, it's a simple design duplicated a few times.