Is $100/night even remotely the going rate? I would think it would be double or triple that, at least. Especially over yomtov.
Should be, unless in the really high demand areas (think near Gur/Belz).
Once you go a METER out of the tourist areas - prices drop like a stone.
On another point, what people are asking/paying for regular rentals in the central areas is absolutly nuts.
You could buy the exact same size (or larger) house in
RBS Neve Yaakov or the like and pay it off in under 10 years with the same or less monthly payment