Understandable.
Talk about the same boring lineups with the same well-known names over and over again! Not to mention the very high ticket prices for the festivals.They are not affordable for many of us. It's kind of sad that many people who go to festivals have deep enough pockets to pay for travelling costs, festival tickets etc., but not for an album. You're probably right that most of the new audience don't really care about buying the music or at least getting acquainted with relevant discography. They just want to go to festivals, even if they don't know who's playing. I feel the scene is becoming more commercialised, like the rest of Psytrance. Fast food for the masses.
Not sure though whether the Goa scene itself has shrunk. It seems it's becoming more mainstream. The underground feeling is fading away, and instead you get big expensive festivals with extravagant, flashy decoration, and very prominent, levelled up DJ decks, as if they are some kind of superstars. They look ridiculous, egotistic attention-seekers to me. When the scene emerged in Goa in its most authentic form it was not like this; the dancing experience itself was the focus.
There are more events and music released than 15 years ago. It's just that there is no "quality control" anymore. As physical format is gradually being abandoned, individuals and labels can publish virtually anything online, which is not costly I suppose and therefore not risky. And then you end up with tons of music released, most of which is of poor quality, and most of which almost nobody buys.