I did do a cluster concept. I'll dig it out and post it for review.
I wouldn't check out mice and keyboards, only wireless controllers. I don't necessarily want the consoles on the floor so I would need to use wireless controllers. I would have the PCs in the back room so I could definitely "lock down" the wired mice and keyboards using the zip tie concept. And, I would do such a thing if for no other reason than cable management. I will have a camera system. Four cameras. One per corner.
I will have a smaller separate counter, almost like a podium, for greeting and informational purposes in the front space. I have no intention of hovering in the back ignoring people. I will be up front, very personable, very social, and selling, selling, selling. I don't want a huge counter right in the front of the visible door space. I don't want people passing by to see "counter". I want them to see in and see gaming.
The two windows won't be see through so having a counter in either window won't be distracting or distract from the experience. I'm going to use this window application they have that puts printed graphics on the window that has small dots in it. Not visible from a distance but allows you to see out and lets in modest amounts of light.
If I were to move the entire back space into either one of the "blue" corner areas, it's very workable. It would give me more area to work within but would sacrifice one of the console areas. But, I'm still debating over even having consoles. I'm leaning strongly towards pure PC. I'm still in the planning stages so all of this feedback is great to consider.
The rows in the first picture are no more than 10 per.
Customers will use the mall bathroom. I won't need (nor want) to offer public bathroom access. There is a back room (not pictured but accessible through the door pictured) that's approximately 236 square feet and a bathroom for employee use. I have the ability to use mall storage if I need more room. The back room will house the racked PCs along with some extra air conditioning just to be safe since I'll be housing 30+ computers in the space.