I just got back to Destiny a couple months ago, and had not purchased any DLC. I got HoW because of the Prison of Elders feature (something with matchmaking!!!). Before that, I had never even attempted VoG, and have only completed it 3 times up to now. I held off on getting TDB since I knew I'd be purchasing TTK (HoW confirmed that I still wanted to play Destiny), so I actually only got access to Crota last week. TL;DR: Yes, I'll be doing Crota's raid at some point, and I like running around Vault of Glass enough that I'll be going back there, too. If you're on XB1, feel free to add me (gamertag is the same as it is here), and we can run the raids at some point. Right now I'm powering up to be end-game ready for TTK, and agree that going back to the old stuff should be fun; not everything is about getting almighty loot.