We know, we know: It is so not cool to party at a Sheraton. Except, strangely, it is! We're perpetually stunned when we walk into District, the sleek bar at Phoenix's newest downtown hotel, and see that it's packed with revelers. At first, we thought it must merely be conventioneers, dorky out-of-towners with tube socks and nametags. Ha! On one recent Saturday, we stumbled into an eclectic crowd of genuine downtown Phoenix types: black, white, Latino, funky-haired, coolly shod, and artsy. On a recent Tuesday, while sipping our martinis, we saw beautiful people: attractive older men in suits, chic Scottsdale ladies in halter dresses. In downtown Phoenix! At the Sheraton! So get over your prejudices already. The party is happening, whether you're there or not. And as for us, we're popping by so often, we're becoming regulars. At a Sheraton!