We have a Toyota Camry and Sienna (minivan). We considered trading in the Camry for a 'gerbil car' as we affectionately call a fuel-sipping compact. But it's silly for us. THe camry gets great mileage for its class, it's very safe, it's new and it's paid for. We drive this car most often.
And I have a van. It's also new (2 yrs old), paid for and wonderfully convenient. Dh wanted to sell this but then I wouldn't be able to pick up my kids friends from school, pack the back for a weekend camping trip, carpool with another family, haul stuff from Home Depot.... we don't go joyriding in it, but it IS convenient when we need to haul a bunch of people or things.
If we had payments on either car we might consider trading them, but already, we don't drive much... we might fill either of them every 2-3 weeks.
There will always be people who want or think they need a suv or van. Post it on Craigslist, call the dealership about a trade.. you can unload it if you need to, I'm sure.