It depends on the artistic and technological intent I think. Valve (tube) amplifiers are inferior to any modern amplifier in every way you could actually measure with an oscilloscope yet people still build them and valves are still produced they same way they were in the 1950s because the imperfections they produce in the sound can sound pleasant, which is down to psychoacoustic factors which have subjective as well as objective components. A photo that looks exactly like what we’d see naturally is one potential goal but it’s not the only one in my opinion.