>>714321172 (OP)Correct, every single dungeon has a unique gimmick. It's the assets that become boring, there's only cave, ruins and hero tombs. Also, there are many copy pasted elements, such as the stairs leading to a boss room, which adds to the feeling of repetitiveness.
Also, people tend to miss those dungeons, and come back later using a wiki and chain them, burning themselves out. That and people come back to early missed dungeons after completing big ones, and only remember the last ones they did, the easy ones.