Vertical tabs have a huge advantage, collapsible tree. For instance I have HN tab, and all the other links I opened from there collapse under it when I open a n

Vertical tabs have a huge advantage, collapsible tree. For instance I have HN tab, and all the other links I opened from there collapse under it when I open a new tab. This way I frequently have up to 60 or 80 open tabs without them overloading at the bottom. On the other hand, with horizontal tabs I can't see much more than 20 of them at once on my 24" screen.