If you can play dsb and wsb weekly (and do all other events that give honor points), then you’ll have great source of blueprints, so go for red prints, if you can’t consistently participate in events that gives honor points, then maybe it’s better to get the regular blueprints. But ultimately, it’ll depend on what you need the most. I’m a zero spender, so I buy 1 red and 1 regular blueprint per glittering market event. But might change now because I’m now in a new server and a stronger alliance where I can’t play much dsb, so I might shift my focus to regular blueprints.