Last month I did a little mini-survey. Out of 6 domestic flights, 4 had no predepartures (one flight was however extremely full of spring breakers, and it took forever to get them loaded and out of the aisles, so I will give the FA's a pass on that one. They were practically begging people to get in their seats.) One had tray with H2O and OJ. And one, you could order whatever you wanted.