I think that would come in real handy for rewiring older homes. Depends on the price point. In old homes with undersized floor joists, or hewn beams (logs) as odd intervals, I don't drill holes in these. I wouldn't dare. I generally fasten a 2x8 to the bottoms to staple my home runs to. I'd use one of these trays. I think I could arrange the cables in there so that they are not bundled. Little pyramid stacks of three cables, with space between the next stack... something along those lines. Hard to say... we'll have to see. I know it's something I'll use at least once, just to try out.