Bookmarks don't retain scroll position, and must be actively managed to preserve hierarchy.
Firefox tabs are a zero-cost, and far more usable, implementation of bookmarks.
Chrome tabs are terrible -- the UI and memory demands are absurd.
Firefox (vertical) tabs are great, convenient, fast, easy, and cause no resource drama.
I have bookmarks too though. They serve three purposes: a) remember this forever but get it out of my way for now, b) put this in a managed hierarchy easily accessed from my bookmarks toolbar, or c) save out this big hierarchy of tabs that I haven't looked at in a while but were each probably the culmination of some level of manual navigation that I don't want to repeat.
I bookmark pages I want to keep on hand forever. I don't expect to ever delete them. I wouldn't bookmark product reviews that I'm just juggling while deciding on a purchase, even if I have to put off that purchase on the backburner for a week to deal with the rest of my life.