Again, the purpose is to highlight features, mechanics, and general modernizations to this old, niche game. Things that you've witnessed and enjoyed, or to suggest things that you'd like to see as a player that fall under this "trend" or "segment", that we've witnessed in the private scene recently.
The reason is pretty simple; people who are capable of doing these things might read it, or those who have "insane money", as you said, might seek those who can to do it for them. That's all there is to it.
Personally, I'm a huge advocate of these servers and I'd like to see more of them. The game is old, the niche is real, sure, but the blends these projects bring to the table are often incredibly fun or make a lot of sense, at least to me. So I want more of it.
Example, Valhalla-Age introducing 7 slots for a full party in a nostalgic game-play setting is great, imo. It really makes a lot of sense; especially now, post-lockdowns, with an aging audiance. It's becoming exceedingly difficult to get a consistent group of 9 people to play together. Or you get like 5-6 people you actually like, and another 5-6 you can beraly tolerate, lol.
E-Global merging the Bladedancer/Swordsinger (at least the buffs they provide), makes a lot of sense too.
DEX introducing a Talent-Tree system that leads to unlocking new skills, in a nostalgic game-play setting without Kamaels, again, really cool. Lots of people will dig that, I'm sure.
Lineage2.gold taking an old, niche (yet popular) game-style and giving it a new breath of life by modernizing it is a good thing.
Introducing stages in order to prolong server life-spans, and gradually release content in order to emulate the sensation of chronicle progression. Cool.
Projects in general modernizing their servers to newer clients so we don't lag at baium like morons. Awesome. Can we get more of this please?