I mean two big points are price point and amount of content.
Even then it’s very much comparing apples to oranges because the expectations for each game are vastly different. One is a free game where the whole point is collecting and the other is supposed to be a grim dark 40k Left 4 Dead.
I think the restaurant analogy above sums it up but a lot of frustration comes from the fact that a lot of system existed in VT2 that were just better than their DT counterparts (cough Sour Milk’s shop vs the VT bounty system cough).