I may have to agree with you on that. And it may be the reason why they opened the residency to those living outside NYC.
Originally, they were very strict on the residency requirement, and you had to live inside NYC. And that held for a long time. But, apparently, they came to the conclusion that...well...maybe the city's public school system wasn't turning out enough "qualified" candidates for this job, if you get my drift. I believe they've opened the residency to the same as police offices, that being, all of Long Island, Westchester, Rockland, and Orange Counties (possibly Dutchess Co., too; not sure). But that, of course opens up another expense with that salary: commuting.
Here's a video of what one of the two 911 centers looks like...
With that all being said, if you have any interest in such an occupation (perhaps, maybe, as a Dispatcher with a small town outside the city), it is an interesting job.