I like to try new weapons out not just stick with the same loadout all the time for all of my characters. I have a legendary and exotic pulse rifle as well as a high impact scout rifle I like for PvP. I have the Hung Jury I like for PVE, as well as the Touch of Malice for the raid. I want a choice of my swords (both legendary and exotic), my sleeper, and a good machine gun for my heavy slot. My special slot needs a good sniper for PVE, and a good sidearm for PVP. I used some weapon parts upgrading some exotics to try them out like the Ace of Spades, Hereafter, Boolean Gemini, and Zhalo Supercell. And with reforge gone, once I find a legendary weapon with a better roll I now have to upgrade that one higher then my older one with the worse roll. Not only do I need to fully upgrade all of those guns I need to infuse them up to the highest attack I can so I can use them in all activities (Raids, Iron Banner, Trials, and Nightfalls) and with the way infusing works you have to infuse up in steps, you can't just take one 300+ weapon and use that to get a 280 above 300. That is where everyone's weapon parts are going.