I can't even imagine trying to locate that "useful tab" amongst 1500 open tabs. My bookmarks by contrast are nicely organized into folders. I can also open an entire folder of links at once, for example, my favorite blogs.
So typically what happens is I'll split out browser windows with tab groups, Firefox used to have a way of doing this from one window, but they scrapped it or its just not default anymore, it was like "Virtual Desktops" but for tabs. It was insanely useful, I think the tabs that were hidden were not even loaded in the background, so they were on standby until you can back to them.
