summer plans

So I have three weeks between spring and summer quarter and I would like to travel for one week. My first choice is France, but flights are $700ish + hostels and travel and I can't really spend over $1000 for a vacay in grad school. Second choice was a road trip, but I'd have to rent a car and car rental places aren't big on you renting cars, driving them a long way, and then dropping them off to fly home. Then I thought about Costa Rica with Meghan, but it seems a little frivolous for someone about to be in major debt. Next idea is a Philly/NYC trip. A multi-city flight (SAV-LGA-PHL-SAV) is around $325. I'd probably spend about the same buying food/bus/fun. I can swing 700 total I think. Should I do this? Hmmmm.