Trick is on you, we have had 5 new LE chips all year (a set of 3 and set of 2).

Nobody has mentioned anything new coming out, except 4 new casinos in ~4 years.
Hoepfully Trump will sell his casinos and we can get 7 new sets of house chips!

If you don't feel like walking or driving alot, pick one area and see those casinos.
North end of the Boardwalk you have the Showboat & Taj Majal & Resorts.
South end of the Boarkwalk you have Hilton & Tropicana.
Mid area of Boardwalk you have Ballys, Trump Plaza & Caesars.
Mid area to North or South is no big deal of a walk, but North end to South end is a NICE walk, especially if you are reversing your walk in the other direction.

Then you have the 3 casinos in the Bay which are separate from the Boardwalk.
I like the nightlife atmosphere at the Borgata on the weekends, but you won't be walking anywere if you park there.
Otherwise, there isn't that much difference this time of the year.
All the Beach bars are closed and most of the shops on the boardwalk close earlier after the summer is over.
Never had any problem on the boardwalk.

As Ross said, if you park one place, ask the reciept so you can get a free park at a second casino.