I grew up in eastern PA, Bucks County and am actually there/here now. All of Jersey and much of South Eastern PA is getting very expensive. Try NE PA above ABE. Towns like East Stroudsburgh, Bangor, Port Jervis on the PA/NJ border are still affordable and about an hour to EWR. If I could ever settle with US Air or CAL or JB this is where I'll most likely end up although closer to the Lehigh Valley if US Air becomes a reality.
Sparta NJ is where all the old timer, pre dereg senior AA,DAL, UAL and CAL guys live. My parents almost moved there when my dad got on with UAL in 78 but both were from PA so we ended up here. Sparta is very high end.
Many JB people are building in the Poconos.
In NJ south of 195 in the Lakehurst/ACY area you'll get better prices but not by much anymore. Yeah I love Princeton too, have friends there but unless your a 777 capt at CAL good luck. A friend that lives in Princeton pays 1500 for a one br apartment (he's furloughed). My friend in Jersey city pays 3000/month for his 2 floor condo. He's a TFK so that explains that.
I saw a studio apartment advertised in New Hope, PA (10 mi from Princeton) for 2500/month last week.
PM me and I can help if you want.