Argh, Anders, you have caused me to daydream on a day when I have much work to do.
I would use your $500* for a night or two at one of my favorite places on earth, Blackwater Falls State Park
, in Tucker County, West Virginia. High on a mountaintop, as the old bluegrass song has it, remote, peaceful, rustic, and beautiful.
*That would totes cover lodging, food, and the drive from Allentown.
My gentleman friend and I would spend the days hiking** in the beautiful, lush woods, after a big breakfast in the lodge restaurant on the rim of the Blackwater River canyon. Plans for the evening would include hanging out in the hot tub, dinner at the lodge, perhaps some quiet time by the fireplace (the lodge has a large, yet cozy, living room) or sitting out on the canyon rim, where the stars seem close enough to touch. And yes, we're staying over dammit! Your budget would allow two nights in the lodge, or one in a cabin.
Ahh...it would be wonderful.
**A man who won't go hiking with me is probably not my man.