Rng rolls kept me interested in loot and replaying activities to get rolls that I liked. I'd even look at blue gear for their rolls and play with them even though I was max light with purples. Rng really kept me coming back for 1000's of hours to replay activities. It really comes down to that there isn't enough gear in the game. There isn't enough options. I don't think it is practical to make 1000's, but what you had in d1 was. One gun type with static base stats, but random perks, turned that one gun into many guns. I see the same attempt to be made with mods, but its current state is pitiful and I don't think it makes loot interesting. Mods themselves could be interesting if there were 1000's of them, but I see mods seperate from loot and want to get excited about loot.