Yep no Megazoom if just I guess because with 2GS/s sampling, 10 times more than a Megazoom, it would have required too much memory for the day, and more importantly I guess so much ASIC performance that it would have been either cost prohibitive even for high end HP stuff customers, if even at all technically achievable at the time.
That's where I will concede the modern scopes a clear advantage. Technology/performance has improved to the point where you can have both high BW / sampling rate, and deep memory at the same time, and you can set the trade-off between the two on the fly as you require, to suit the job at hand as best as possible. High time resolution versus high refresh rate to find rare events.
That's the main selling point to me, if I were to ever be in a position to be able to spend money on a modern scope.
That, then next selling point to me is the large wide aspect ratio screens that give you a lot more real estate to see your signals.