Cater or use thier .........

I am having two receptions.
One here and the other in Jamaica for FH family who couldnt attend.

The place we are having it also serves food.We have the option of catering on our own or simply paying for the guests meals...
what do you think is a better otion. When we were ther in April the price for lobster dinners were the equivilant of approx 12 US plus drinks.