Im a local who has done multiple visits as a non-DAS user, and many with an out-of-state AP holder who IS a DAS user.
I can say from first hand experience that the two cannot be compared, and yes, the DAS is a massive benefit. Once they monetized FP (via genie+), that really pushed it over the edge. I can’t afford $60 per visit for my family every single day to MAYBE get 2-3 lightning lanes (yeah, sorry, I’m one of those cheap locals Disney can’t wait to be rid of). So I don’t buy it and we’ll pretty much never see the inside of a lightning lane again when it’s just us. But when my friend comes down with her DAS, we do 2-4x the number of rides with her pass, and we do it without spending extra money. More rides AND free? Yes, huge benefit.