I have a buddy who has a 50 ft X 16 ft layout at about 24 to 30 inches. It looks great even though I prefer heigthts like mine ant 53 inches.
But, I just gotta tell you that when he crawls under to work on it, it ain't pretty. It's an athletic event. Or like working under a car. But with all those legs supporting the layout it ain't like a car. So, a creeper won't work. When he's older and stiffer I'm concerned that that's where we'll find him if he goes missing. Trapped by his layout. Gone but with a smile on his face. Probably have to tear out that part of the layout to get him out.
Turns out (luc of the draw, not planned) that with my benchwork at 53 inches I can sit in my office chair and my eyes are even with the bottom so I can relax and see under the layout. Then with a lower stool I can sit erect (good posture makes for good workmanship, ahem!) while working. Just gotta wear a gimme cap to protect my ever lengthening forehead.
52 to 53 inches is the magical height all things considered. I'm doubling down on that. Great viewing on top and little comforts underneath.
I have several stable stools with handholds for the younger grandchildren. And at 53 inches they can't reach the trains with their nasty little fingers without the stools. So, I rule in my kingdom. (if nowhere else)