NP programs vary so much. There are also other things to consider:
Depending on which specialty you choose, some are offered at tons of schools
and others are offered by just few dozen schools.
You may want a traditional classroom experience, or might feel okay with online or blended/hybrid programs.
Many programs are part time, but some are full time.
Some offer an MSN, but an increasing number of schools now offer DNP degrees without getting the MSN first.
Lots to consider in addition to the cost and program difficulty. What really matters - will the program prepare you to become certified and succeed as an NP?