Meeple's list is basically correct, not much to add to it.
The one wild card I'll throw out there is that, if people are weird and uninterested in NYC tourism, there's two flavors of Jersey Shore: Northern & Southern NJ. Northern NJ is the default, and allows for a bit of everything: maybe some NYC tourism, maybe some beach. There is also Southern, though; the main appeal of South Jersey is that it's cheaper. But the tourism opportunities are a lot more placid, so it'd be more a "we just want to veg out and chill around a rented house playing video games and maybe hit the beach / boardwalk" con (although if you still wanted to do some sort of big city tourism, Philadelphia is reasonably accessible by train ride, and the casinos have shows & such). The possible bad news is that you get to fly into Philadelphia rather than NYC, which while a pretty well-served airport, is not as well served as the NYC trio of JFK/LGA/EWR are. (I grew up in South Jersey, hence me mentioning this.)