It's easy to overlook the sample memory spec. These old Teks have decent bandwidth and 1 GS/s, but only a few thousand points of memory. This makes it impossible to zoom into a captured trace and leads to severe aliasing (trap for young players). In comparison, modern designs store millions to billions of points and can operate at high sample rates even on a slow timebase.
It's not necessarily being overlooked, perhaps it's just overkill? Mend it Mark on youtube uses an ancient Tektronix scope for lots of things — and it's great for what he does. Of course sometimes the fancier scopes come out.