I started with an Audeze LCDi3, pretty high end but needs EQ mandatory and no isolation so my usage was very limited, sold it recently.
Then came a Moondrop Aria, which was very good and got me into the rabbit hole of Chi-Fi (China Hi-Fi, literally, no implied meanings here). For them came a Chu and while good I decided to upgrade from both.
The Moondrop Blessing 2 Dusk came as my main IEM and I loooooove them. The entry level end was upgraded to a 7Hz Salnotes Zero, which is better than the Chu, and I sold both the Aria and the Chu.
I still have a curiosity on how the Thieaudio Monarch Mk 2 would sound, and be my main IEM. But this market is crazy fast and every year the best values on each price range are completely different, so I wonder how long the Monarch will be there until a Mk 3 comes out, or another brand replaces it for half the price or whatever, so I am hesitant to spend that much (1k usd)... Much safer on the mid to entry levels.