I have the small and middle size Green Mountain grills and have been happy with them and no longer own a gas grill. Wife and kids like the flavor better than charcoal and we've all felt meat stays moister and comes out more tender than other grills we've used. They don't get hot enough to do a good sear on steaks, but I haven't tried the grill grates yet so maybe that is the answer there. I think they do best with longer lower temperature cooks like whole chicken, roasts, etc. I'm paying $15 for 28 lb bags of pellets and go through a couple bags a year so fairly reasonable.
In your case already having a smoker, I might be looking at the Big Green Egg or similar ceramic grills if grilling steaks were a priority.
