I'm going to be in Frankfurt this summer for a few days on my way back from Israel. I'd like to book a hotel (for cheap), but I'm trying to figure out where to book. I'm going to participate in the Tuesday Night Skate the night before I leave, so I'm trying to figure out whether I should stay near there (Frankfurt-Sachsenhausen), or near the kosher restaurants. Any suggestions of a cheap hotel in either area?