What kind of things do you enjoy doing in your free time?
Boating? Listening to live music? Snowmobiling? Golfing?
Erie is a cheap place to live, I'll give it that. I'm originally from Lancaster, PA and I've gotta say that apartments up here are a good $200-$300 cheaper in the city.
However, growing up in Lancaster I got used to 2 hours driving getting you in Baltimore, Chesapeake Bay, Gettysburg, Reading, hundreds of small unique towns, lots of breweries, state parks and of course, Philly. I lived across the river from some nice sized hills, and could ride the river for 3 miles east/west and up into a nice county park. I could get a 10 mile ride, all dirt, from my back yard.
What I miss the most about that side of the state is the diversity. Erie has the Lake, and it's got a few cool streams here and there, and the rest is marshland.
The county ditched its parks in the 80's, so all the parks are owned by the municipalities, which means they are all virtually undeveloped and hard to access. Or they are a swamp. No mountains to speak of. The transportation system makes even the nearest small town a 20-30 minute drive, and unfortunately the small towns are just that...small...with no real "unique" aspects to them.
When my girlfriend first moved to Erie in 2010, she told me "Erie feels 10 years behind the times." and now that I've been here for 2 years, and I can definitely see that just about everywhere.
Erie's biggest problem is its separation from the rest of the State's population. Take a drive from Pittsburgh on Rt 79, and after passing I-80 you'll notice that the number of exits, houses, and development thins out, and you really don't see it for 100 miles until you get close to Erie metro.
I know some folks who love it here, but they are really held down by family and friends. Most outsiders come, work, and leave after a few years.