Quoted from too-many-pins:
I like Central PA but traffic along I-81 & I-83 is really starting to be a bit of a mess. We have traveled to all 48 states & we still like this area better than most places we have visited. I love to visit other areas but I wouldn't want to live in most of those areas. It seems we have the "best of all worlds" here. Four seasons but winter isn't super nasty and summer only has 15 or 20 days over 90 degrees (most years). Nice amount of rain to keep plants and grass alive yet not raining all the time. ETC
Plenty of decent paying jobs yet housing cost are not bad. Plenty of good food, places to visit, etc.
And don't forget Skip:
PA remains one of the few states that does NOT tax your retirement income.
That explains much of the exodus up from MD and VA - as well as the much lower taxes here!
(You may need to look around some, as our school property taxes can vary significantly from district-to-district and area-to-area).