Golden Week Rush
I'll never understand cultures that synchronize everyone's vacation time. Similar to August throughout Europe, most Japanese folks get Golden Week off in May. The upshot is that everywhere is crowded, hotels are expensive, and there's nothing to do because everything's closed.
The first 5 restaurants I'd picked out in Shinbashi were all closed. Presumably, because their Tabelog rankings were high enough to justify the lost revenue. Alas.