Travel galaxy. Meet beautiful men and new lifeforms. Kill some of the new lifeforms and also the romans because screw the romans.
What's not to like?
:p
Somehow I highly doubt any other race's men would count as 'beautiful' in the eyes of the Simulacrum. All that weird stuff attached to their faces and whatnot. And, general rule of thumb, killing isn't something one should like doing. :P