Glad for your sharing of a happy 'find' experience. Not sure if you're 'selling' or 'telling' though.
As one the members in your audience, there are some of who would prefer a 'live' performance over a recording. Price is the only measure surrounded by many superlatives.
As one who prioritizes live performance over reproductions- the discretionary spending budget has different elasticity/inelasticity curves. Compelling value proposition seems absent.
Aren't reproductions nothing more than an aggregation of layers of artifacts?
If the desired outcome is constrained to the conditioning of one's listening habits seems to there is a departure from fidelity of the original performance work to the recording/production engineers biases and preferences.
Class D is about the needs for addressing increasing demand on our collective electrical supply. Not just quantity but, quality(s) and reliability, too.
The OTL certainly is one.
The GaNFET is certainly needed over the material limits of Si.
Helper Circuits (e.g. Purifi/Hypex/Ghent..) are of materially benefitting, too.
All these components require emerging test devices and measures to address integration. Increasing needs for ever smaller precision approaching the smallest theoretical period of time. Only in 2014 we just deployed NIST F2 clock. On our way to Planck's length, or just 0.5 x 10-43 seconds.
Does the listening habits/training from live settings dissipating during audiences' quarantine & isolation? Is a consequence of performance-based fidelity displacing the original performances work's lost if our venues are increasingly constrained to recording engineers biases and preferences?
Last then there is the TCO (total cost of ownership). Is this approach really a sustainable business model? Is blending Tubes & GaFNET, Helper Circuits & Class D just greater uncertainty (Heisenberg/Schrödinger)?
