Although it bothers me that Dorney only gets used rides, Sky Rider is the one exception that would actually excite me if it was relocated to Dorney. I don't get the hate on this ride. I rode it 2x this summer and both times it was spectacular. I was devastated when I learned they were removing it.
Dorney Park gets used rides, but they are unique.
Possessed - There are only 6 Twisted Impuse coasters
Stinger - Only 4 Invertigos
Demon Drop - One thing is that 1st Generation Freefalls are rare, another thing is that they are scattered around the world.