All these options sound reasonable for a quick, cheap get-away, but I think the biggest thing that makes it difficult isn't so much hotel pricing, but instead flights. Air fare is outrageous!

My girlfriends and I just took a trip to Vegas, and the Bellagio is an excellent option for a romantic or fun getaway. The water show is breathtaking. We flew over parts of the Grand Canyon - AWESOME sight. I recommend Las Vegas for all occassions. Enjoy!

I went to Gulf Shores, AL for spring break with a group of friend a couple years ago and it was super cheap to stay! Our condo was literally right across the street from the beach and was only about $150 per person for the whole week! The beaches are great and the restaurants on the main strip are all really great too. Plus, it's just a short drive to Pensacola, FL, if you want to check out the beaches there too. It's an awesome vacation spot!

vegas is awesomely fun!!!! there's always something to do; for FREE!! it was either vegas or l.a. this year and we decided l.a. since we went to vegas last year. i do miss it though