I think that is a great idea Laura, whatever makes your babies happy is the main priority. When I go away for about 4 days to my boyfriends parents to visit (they live about 150 Miles away) I leave Jack and sunny home and my parents go around twice a day to feed them and pet them. I'd much prefer to have them home, so they are familier in thier own surroundings as although they miss us they don't have anything else to add to stress and they remain pretty calm. Also you have the added bonus that when you come home, they are there waiting and are so pleased to see you.
The best part of going away is coming home to be greeted by your cats