I did run a DnD campaign for three years with the same people. Last week we had a session sheduled and i just could not get my mind focused.
I asked if they would be interested to put it on a hold and try something new i wanted to run for a long time and showed them my collectors edition of RT. I didnt have the time to give more than a short summary of the setting before they forced me to print character sheets.
The best part for me was as i was asked if this Imperium does have something like Star Treks Prime Directive..., couldn't stop laughing. And had to explain that most Imperial Ships would shoot first and ask questions later when xenos are invoved.