A big +1 to this!
My experience was to try every semi on the market (have owned versamax, A300, A400, 11-87, super black eagle, super vinci, sx3, maxus) but what I've landed on as my favourite goose gun is a plain/jane pump gun mossberg 500 which I used to kill a mountain of Canada's last year. If you went that route, you could get two (one for you, one for your son/wife), and still have $1000 to spend on shells/clays to get all practiced up for when the geese fly. I love handing out my loaner to folks that want to come try an afternoon in the goose blind...I can't tell you how many new places I have to hunt that have come from "the loaner gun!".
Good luck,
Brobee