Yeah, it's very much a game of "oh, what if next run I try this build". Then you get halfway through the run and have another idea and you end up never actually finishing any builds but having fun anyway just getting halfway there each time. I'd say the DLC is worth it for the expanded class selection alone. I end up putting Oathkeeper in half my builds because I keep getting some half-baked idea for a retaliation build and it works really well to support that archetype.