if you generally have a lot of stuff open and a lot in quickstart and systray (i.e. you actually use your PC for more than benchmarks and doing 1 thing at a time) then having just 1 line deep is a lot more cluttered - your area for open programs is much smaller and just looks a bit naff to be honest.
all IMO of course.
Virtual Deskops like Gnome would be nice and solve this kind of problem
