The thing is years ago when these beat selling sites came out (as well as social media) it was like a goldmine for beatmakers. There weren't as many people selling beats then compared to now.
But the biggest difference is everyone is all about marketing their brand now and creating sales funnels through cheap offers like this one. Grab the person's email and add them to your mailing list and slowly sell them more expensive beats. It works but it's greatly devalued the product for everyone overall. So now buyers are most likely going to just want 99 cent beats and see no reason to dish out $500 for a beat.
Then you can add AI to this soon...
This is every industry though, and AI is starting to see some "data poisoning" risk. Since a lot of LLMs foundation is the internet itself, there's the risk of the "well being poisoned" as more creative professionals do anything and everything to distinguish themselves from AI by making sure their work doesn't become free training data.
That's just a temporary thing though and eventually the tech will scale (if it's a benefit to humans) just like all tech.
While I think from a music perspective tech advances and social media has eliminated almost all barriers of entry, resulting in the "oversaturation" we hear about, I still think only the best music still climbs the charts though. Ultimately you can only buy so much of your fanbase, a true artist still and I think will always be able to influence others to willingly keep listening to their music. Obviously a bigger budget makes it easier to market your product, that's how it is in every business too.
One concern I do have though is how the incentive structure has changed. For example, I feel like it used it be pretty much accepted that you either make it or don't. Sure, there are a lot of support jobs at labels, and if you really wanted to stay in the music biz there are plenty of jobs if you didn't make it as an artist. But now we see a lot more people with a pretty good fanbase who still live middle class lives, and in many cases may need to work 2x+ jobs or do a lot of different side hustles (like beat leasing) to make enough income to live off of. How does that shift the mindset of the future generations? Does it help bring us better art because there are now more options for artists to make a living, or does it actually lower the bar since there are more options to make a living, and accordingly there are less artists who fade away but more sub par artists who linger and lower the quality bar (especially with how audiences consume music continues to evolve and be more p2p and streaming)?
My philosophical thoughts in the moment anyways.