Downtown package theft is rare and most buildings have a vestibule for packages. Some people also find no benefit to a door man and some find it intrusive. Also, for those with a vehicle, doorman buildings typically have a garage which is an added cost since they are not allowed to use on-street parking.
As an example, I have a dishwasher, in-unit laundry, 120sf deck, central air, 2nd floor of a 3-unit brownstone and I'm paying a fraction of what you'd pay in a doorman building. And no I didn't lock in my rates during or before covid, I moved in this past spring.