KANSAS CITY, Mo. — If you watched the NFL draft on Thursday night from Las Vegas, the entertainment capital of the world, you saw the Bellagio fountains and the Vegas version of the Eiffel Tower and draftees taking an endless walk through a playing card-themed tunnel to the stage. Perhaps you caught sight of an Elvis impersonator or a glimpse of a scheduled appearance by Mad Apple, described on the Cirque de Soleil website as a “cocktail of high-flying acrobatics, music, dance, comedy and magic celebrating the city that never sleeps.” All very Vegas, in other words. “The key thing for the draf…