The missus is really pushing for us to have something with 7-8 seats, and I get it, but I think she (and many people) overestimate the amount they'll sue all those seats. I think we're going to end up with some vehicle that drags those seats around empty 99% of the time.
We use the first and second row seats 90% of the time. With 2 kids.
Now we have a 3rd one coming only a few weeks away. The oldest one will be moving back to the 3rd row (still plenty comfortable but I'd rather keep the car seats by the sliding doors in the 2nd row) and anything other than the minivan simply won't cut it anymore.
For now, the 3rd row is mostly folded and the space at the back is used for groceries and trips to Home Depot.
The 3rd row does go up when we go on a trip with extended family or friends and thus leave one extra vehicle parked at home.
Another neat "feature" and advantage of the minivan is, with the 3rd row folded, you can fit long and wide objects (like an interior door, or a large mirror) and use the 2nd row seats for additional support still leaving plenty of room for other luggage or 2 weeks worth of groceries.