Sorry but that old crap Keithley doesn't match up! No capacitance measurements, no dual display (voltage + frequency for example), temperature, continuity?? And if you would have read the specs of the VC8145 more carefully you'll see it is very accurate for RMS measurements up to high frequencies which makes the VC8145 suitable for audio work. Again this is a rather unique feature especially given it's price. I have compared lots of new and used DMMs in the 4.5 digit range and the VC8145 just comes out on top.
You must not confuse an instrument which can do a few types of measurements very accurate versus an instrument which does a lot of things very well.
LOL, someone who owns a Vici DMM calling a Keithley meter a piece of crap! That old meter has better voltage accuracy, higher AC bandwidth and a higher 10nA resolution than your 'modern' light box.
Of course, as an only meter, it wouldn't cut the mustard as a jack of all trades and I never suggested otherwise. But then yourself suggested a uCurrent box to supplement the Vici shortcomings.
A reliable 20kHz true RMS voltage bandwidth is nothing unusual. Plenty of cheap meters have the feature, including multiple data displays.
You claim the meter has unusual features but all I notice is that it is missing:
4 wire resistance measurement
latched continuity
useful capacitance range and accuracy
nA resolution
high DC accuracy
fast acquisition and filtering
The old adage rings true: You get what you paid for. If you're on a tight budget and need a mains powered stackable box, fine, otherwise you'd be better off with a handheld DMM of similar value.