Hi, thank you very much for your interest! I really appreciate it. Together with my team, it was decided to remove the sale of the ROM only. We do not exclude including it again in the future, but for now, we prefer to focus on physical cartridges, which return a more authentic experience.
Because after all this work, there are constantly people trying to resell my content by passing it off as their own, at least this way they have it less easy.
However, if you search on Etsy you will find that the price is perfectly average, in fact many cost A LOT more. I also do time-based special pricing on the Etsy store.
That said, everyone is free to make their own considerations and look for alternatives.