With the 40th anniversary of “Saturday Night Fever” upon us, Vanity Fair recently described the pop culture movie as a “fun 70s curiosity with pitch-blackness.” The special anniversary release of this iconic film not only elicits nostalgic memories of obnoxious white suits and slick dance moves, but it also leaves me thinking about hotels and their Sunday night pricing. You see, Sunday nights can also be considered a fun curiosity with a bit of pitch-blackness.