Just take RuneScape gold this current Traveling Artisan event. Assuming $50/hr, that's ~$80,000 to develop this event. It costs about $40 in bonds to purchase all the cosmetics, and that's not including leveling up the artisan, IDK how mathematics works out but skimming the numbers it would most likely be at least double that, so let us say $80. That means only ~1000 players need to pay for this event for it to be profitable, and that's not even such as the sharks who will buy everything plus a dozen of each of the consumables, or the many more that will put a couple of bonds into it but not go all-in.

For comparison, take Desperate Measures. It was officially declared about 3 weeks before release, so you know it had been in development a long time prior to that. It brought new assets, narrative development, etc.. Most likely this would have been multiple months of development with quite a large group, but simply to show the point, let's say it costs exactly the same as the Artisan event to develop this exploration. Unlike the previous example, it costs nothing for present members to participate this content. The only way that this makes money is if people return into the game and resubscribe to play this. At $11/month for membership, you'd need over 5000 gamers to resub for this to be profitable. That is 5x the engagement needed compared to a little MTX event, and this relies on bringing in new or bringing returning subs - something much more difficult to do than getting present users to spend a little extra.

In the conclusion of the day, Jagex is a company, and if they want to keep the lights on, then they can't afford to dump buckets of money into content which doesn't earn revenue. I'm not saying that this really is a justification to not develop new content on the contrary, they have to keep the userbase engaged or else there will be nobody left to cover anything - but it will explain why monetized content seems to be prioritized and delivered more precisely than other content. Personally, I quite like the way they are leaning of earning certain permanent improvement with each event, even though this first one was not a massive success.

Fantastic RuneScape gaming experience with engaging and modern

Constantly pushing mtx to make short-term gains is exactly what has been the downfall of rs3 for a long time. That is also the primary reason the playerbase has been decreasing. Good gaming experience with engaging and contemporary content higher player count more long term gains. I really liked how Steve Jobs set it on technology firms losing their invention and real product development when marketing and buy School RuneScape Gold sales takes over the guide.