If you want to look at supply and demand, then look at data. The very Reverb form which you posted a link at nearly 500 GBP says that over the last 2 years the Duo Xs sold at 540 USD in average. Here’s a picture for your information.
Your giving X for something doesn’t make X a fair price. Therein lies the fantasy.
(And the exploitation, whereby UK Companies charge £50/hour for services they outsource to freelancers in India and Bangladesh for 10 pence/hour. When we detected the fraud, the CEO told us: “we’re not forcing anyone to work for us. We offer that and the accept it.” That’s a reasoning similar to yours, whereby semi-slavery wages when accepted by free people equals a moral and just agreement.)
No, I meant the atrocious managerial job Mod did with the Duo X and in general with everything else, bleeding money like crazy and developing 3 products at the same time (including the ill-designed LE Duo X) while never turning a penny in profit. Such as the Expression pedal that was crowdfunded in 2014, advertised in the website until 2016, then a succession of excuses came about: “Oh, we had to redesign it!” “Oh, the samples didn’t match!” “Oh, we had to change suppliers!” “Oh, the parts are not correct!” “Oh, don’t worry, it’s just a matter of adjusting some parts now.” “Oh, the samples came out wrong!” “Oh, our new supplier decided to make some changes!” “Oh, é de cair o cú da bunda!” And in fact, just days ago there was this one: “Oh, one part got stuck in traffic!” A full NINE years later, no pedal.
Then, people want to blame the pandemic that struck in 2020 for a failure dating back to 2014. No one denies the negative impact of chip shortage, but when your own customers offer you money to bring your flagship unit up to speed and not one head of the company even responds to that idea, you know what it means. (Only @falkTX was adult enough to weigh in.)
Then, the next thing that happens is: I have to stay late for an emergency meeting where we must evaluate an extension request for our customer LeanSquare in Belgium. Their financial report came in and there were high losses coming from… you know who.