I've built workshops in 3 homes I've owned since about 1963. (prior to that, I rented, and couldn't build a shop). The bench top gets beat-up no matter how hard I try. So now they are 3/4" MDF SCREWED on with deck screws. Now, I can replace the bench top at any time.
I have found the secret to a productive shop is NEATNESS! Really, the pictures some of you have posted lead me to wonder how you can do ANYTHING in that mess!
I keep tools, balsa, supplies in a separate room. Sure, I have to run back and forth a lot, but my workbench is always ready for a project without having to spend a lot of time scraping off the junk that accumulates!
My main bench is 4' X 12' and contains only drill press, band saw and disc sander. Everything else is stored away elsewhere.
Floyd in OR