I'll tell you the difference between all of them. From Destiny's based game to TDB it was unnoticeable. From TDB to HOW it's was about end game content and that was the raids. Which wasn't bad because it made you feel you were actually getting somewhere. From HOW to Ttk you had etheric light which made it easy to upgrade things etc. Then comes the nightmare. [b] Ttk lightlevel[/b] Bungie made this expansion such a grind in every aspect of this game that for [b] 7 months gamers were pissed off at Bungie because how everything was dropping way below their light level. 7 months mind you.[/b] Then they came out with a hand me out update after that that anyone could reach max light level 320 less then week. Not to mention Bungie added 20 different light levels to every single weapon and gear piece. So when you say it's no big deal. Try imagine what they might do in Rise of iron after the hell Bungie put gamers through in Ttk.