Here is my take again and its the same for some tools. Simple is good, the top doesn't make much difference as long as the edges have clamp room and these tables are used for everything and I wouldn't put a single hole in it unless I needed to or found some specialty app. I have a couple along the edge as well as a couple small slots I can stick a rod in to bend and more importantly can clamp a plate or angle so I can lean on a hand drill.
For big projects or custom work it can matter but for general fab and maintenance work no body with every other tool in the world can beat me "gittin er done" , putting a few holes in er,,, is that whats holding us up than I can with a battery drill, flat bench and a swivel vise with an pipe jaw.
All the fancy clamps and jigs are so slow.
If I was installing equipment for truck frames aint now way if time was money that I wouldn't have a mag drill and granted my skill level is so much better today but its nothing to punch a couple holes for a tool box without renting a tool and due to weight and space constraints as practical and even faster than having the right specialty tool.
I should but don't have a drill, I don't even use a drill press and havnt for 20 years. I really havnt since the battery drill came along.
Fabricators that have a lot of field time are an asset. I understand a dedicated bench for the specialist but the general garage doesn't benefit if but rarely and more than likely not at all.
I enlarge the bench some with multiple men. Beyond a certain size most falls in to specialty again and for the part timer is worth it to mock or jig up for the occasion,,, as one of my buds says about electric,,, you don't have a party all the time.