Church Sound Systems

I'm writing a post on why church sound systems can be much more expensive and require more investment of time and resources to build than typical concert hall setups.
The article I read informed me that there could be at least 10 reasons worth mentioning why a quality house of worship would need more money and investment to make it suitable and professional.

So I'll start with the most basic principles on why a church needs more attention while installing a good sound system.
Firstly, churches are usually much quieter than normal audio/visual setups. Therefore, people in the back row won't be able to hear nearly as well. The dynamic range of the auditorium becomes an issue. More money must be spent on delays and fills.

Secondly, church auditoriums usually contain more dead spots, unlike typical concert builds. Again, more fills must be placed to reach the dead zones that the main P.A. may not reach.

The sound system for a house of worship needs to be more versatile because it is meant for music as well as speech. The auditorium should be appropriated with gear that is meant for either - music or speech.

A lot of bigger churches use more wireless mics. And that means more RF interference with gear. In addition to this, any hums in the system caused by ground loops or bad grounds can in turn cause a sound system to be very noisy. Since church sound systems are more prone to high noise floors than your average venue due to these reasons, much more care needs to be taken when installing these systems to avoid the noise problems as much as possible.

Lastly, churches are expected to sound clean, as well as look clean. A concert venue has snakes running in plain sight, obnoxious PAR cans hanging, exposed patchbays and XLRs seeming to run in spaghetti patterns all over the place, yet no one seems to care. In a church auditorium, however, everything is expected to be hidden, out of sight, or blending in with the rest of the room. A professionally done house of worship will be clean, meaning no visible wires anywhere, discreet lighting and video, P.A. built into the walls, and many other and sometimes very expensive modifications that raise the price of installing a quality church system.

These were the biggest issues I read on church sound systems and why they are more costly to install in the real world.