I will mostly use off the shelf modules, ie Arduinio and its shields etc, so signal integrity should not be an issue. But even a 50 MHz scope is capable of troubleshooting "signal integrity" for a 10 MHz signal no?
More or less.
I don't know how a 100 Mhz one is much better than a 50 MHz one.
Two words: "Square edges".
Square waves, single rising edges,
anything with a square corner is
made up of an infinite series of frequency components.
A 10Mhz square wave shown on a 50Mhz scope will only have the first and second harmonics intact, the third will be attenuated by 3dB and the fourth harmonic will be almost gone.
Only two-and-a-bit harmonics is a
serious distortion of the input signal. Not square at all. A 50Mhz 'scope simply cannot display a 10MHz square wave properly even with perfect, inductance-free wires and connections (which don't exist).
On a 100Mhz 'scope you'll have the third, fourth
and fifth harmonics intact, plus some of the sixth. That's
not a small difference from a 50MHz 'scope, it's huge.
PS: And in reality a hacked DS1054Z has about 130MHz bandwidth (measured) so you'll have all of the sixth harmonic and a lot of the seventh. And
that's why we like them, slightly sluggish vertical movement notwithstanding. $400 for that much bandwidth
and four channels is something that can't be ignored.
As I said earlier: Find that performance from other manufacturers and compare the price. If slightly faster controls is worth that much to you, go ahead...
We don't put up with the DS1054Z's idiosyncrasies because we're ignorant, unrefined clods who don't appreciate the finer things in life like
you do. We put up with them because we can have a decent 'scope plus a whole lot of other toys besides - $600-$800 buys a
lot of other stuff.