I would agree with you for the most part. You want some challenges to remain in the game. This is why I think D1/Y1 had it so right. The weapons that allowed you to melt bosses like nothing were hard to get. You had to grind LONG and HARD hours to get them, so by the time you had them, you were ready to move on from the challenge and be happy to have a weapon that eliminated some of the challenges. They were hard to get, so for most players, the majority of the game was played without those grind-reducing weapons. That is why Y2 was such a mistake - it made the elite-tier weapons so easy to get that the game was a joke. If the challenge always remains the same, the game becomes repetitive, and even worse, tedious. Which is why lootgrinders offer endgame loot that allow you to wreck everything. And you enjoy wrecking everything until the next DLC brings new challenges to overcome.