I don't think you'll find it more affordable in PA based on the information provided. You should also prepare yourself for a property you look at being considerably older, attached to other homes (look up row homes in PA), and the overall quality of the homes is much much lower because they are much much older. Rent for a decent place even in rural areas an hour outside of Philly, etc.. can still run $1500/mo. Newer built communities like condos easily run $2k/mo. You can certainly find less expensive places but I've seen a few that were barely habitable still asking $900/mo.

The home quality and conveniences you are used to seeing in AZ as the "status quo" will be a very expensive high rent place in PA generally speaking.

PA was basically built in the beginning of the start of the country, Arizona at the end. It's common for the place you are looking at to be 100+ years old with antiquated electric/plumbing/heating/cooling and smaller size-wise, lots of stairs, poor use of space... limited or no parking... unless it's new construction, in which case it will be more expensive yet.

Having lived in multiple states across the US and traveled a lot for work across the entire US. I will never move back to PA once we leave. It's just too old, too conservative, too expensive to be worth it compared to all the options.