RE: Of slugs, scopes, and sights
That's what I have heard, the barrels are expensive. Otherwise I would just say put a different barrel on it. If the one for 180 fits your gun that would not be a bad idea either. I didn't mean to imply they were hard to change, just for the money you could get a combo package in a mossberg or remington instead. However neither of those will shoot 3 1/2 inch mags if that is important to you.
Another thing to consider is a dedicated slug rifle might have a better trigger on it more suited for slug shooting vrs shooting shot. Like the H&R or savage. I wouldn't discount an inline muzzle loader either. They are pretty effective, just a bit more of a hassle to shoot. And again, not the best for a drive. They are a one shot deal for sure! Unless you meet up with a really stupid deer.
Good luck,
Paul