I need a new bed...

Our long beloved Malm bed has finally given out and the time has come to sleep on the floor or chose a replacement. I'd like to chose a bed that will last us for many years and we won't get sick of, but we do have a limited budget. So, I've found a few that I like but I'm not sure any perfectly meet our requirements. I'm open to any suggestions as well....The possibilities:

West elm, Crate & Barrel, Room & Board