A lot of the DS hotels are also chain hotels, allowing you to earn/redeem points for your stay, and some give free breakfast (depending on your status). Some of the DS hotels are wallet-friendly - I don't have any experience, but the BW seems to fall into that category, which is nice if you aren't spending a ton of time in your room. So if "being immersed" isn't high on your priority list (it isn't on ours), the DS hotels can offer a nice alternative.
All of that said, it makes sense to do the math. I priced our trip (1st week of Feb. 2020) at POP, and it came to $955 (inc. taxes) + resort parking. The same week at the DoubleTree DS was $1350 (inc. taxes) + resort fees + parking (times two). We happen to be cashing in Hilton points, but if we hadn't had them, we would have either stayed at BW or POP.