I live out in Wantage, Sussex County and this is sort of in my neck of the woods. Kinnelon? I know the area very well. I pass through there every day actually on Rt 23. I hope you guys made out well after Hurricane Sandy. I know that area was dark for well over a week.
You really don't need the rotor as others have said. Aim the antenna to NYC and that's all you need.
You could get the rotor to get philly stations as a backup, if for any reason the empire state building drops off the map (hey, you never know). If it were me I would spring for a rotor just because I can switch markets and watch out of area sports if I wanted to. But to get philly you also need a big antenna and a low VHF antenna to get ABC from WPVI.
Speaking of size, you don't need a very large antenna for this area at all. Quite honestly any VHF/UHF radio shack special will work, but a bigger antenna of course will let you lock the stations better. I don't mean to actually buy an antenna from radioshack of course.
And unless you're a fan of religious programming or mundofox (Spanish) you don't need low VHF either. High VHF and UHF will get you the big four, Pix 11 (CW), PBS and MyNetworkTV, as well as ion and some independents.