This might sound like a big of a strange question, but I have spent the last few days diving deep into the concepts of decoupling capacitors, with lots of simulations and modeling.
It got me thinking - Most LDOs have pretty good output impedance up to a few tens of kHz. Past the few tens of kHz, you are already into the regime where big electrolytic caps (especially when combined with trace inductance) are past self-resonance.
So that makes me wonder - are big electrolytics still useful? (I realize some other applications where you have high pulse-loads are a different matter entirely).
Do you still use them? Are you sure there is still a point to using them?