That's inflation. Inflation is when a certain form of currency starts to have less value over time. Mainly two things cause it: people's perception of value, and the economic principle of supply and demand.
Homefacts City Report. Emmaus is located in Lehigh County, PA. The population is 11,268, making Emmaus the 4th largest city in Lehigh County. There are 4 public schools in Emmaus with an average Homefacts rating of A-. The total crime rate for Emmaus is low, and there are 11 registered sex offenders residing in the city.
Warrington, PA. Warrington is located in east Pennsylvania. Warrington is part of Bucks County. On average, the public school district that covers Warrington is much better than the state average in quality. The Warrington area codes are 215, 267.