Some peoples speakers may require augmentation of the lower frequencies e.g. bookshelf/monitor speakersMy case precisely. I like very few speakers but fell in love the sound of EgglestonWorks speakers but could only afford the Fontaines, not their bigger brother the Andras. The Fontaines require LF augmentation, the Andras, with their 12" woofers, do not. So I did what I could - added a pair of 12" powered subs, moved them to optimal positions within the room for smoothest bass response ... and voila! Andras sound on the cheap (relatively).
They can be more affordable than upgrading to a speaker that has comparable bass perofrmance .
And contrary to the OP’s opinion, they (ACI Titans) perform very well, were not costly (relatively), and were not difficult to integrate.