I agree with Rope , Jon_E ... you will definately want 4 wheel drive. And the mention of finding new things you can do with an ATV once you've had one for a while is so true. You won't believe the places they can take you. Your kids are gonna go nuts... ... and so will we when you post pics of all the fun!
Couple of good looking quads there! I have an affinity for the older stuff. I used to ride a buddys Moto4 when it was brand new as a kid. Honestly, any of the Big 4 machines from the 80s or early 90s will just be bomb proof. They are primitive compared to today's offerings, but there is surely something to be said for simplicity. I beat on all kinds of these early machines quite mercilessly in my youth. For the most part, they took it in stride. Times have changed....but so have prices...and durability (imo). My last one was a 2002 Yamaha 660 Grizzly. I rode it like a rented mule for about 3 years. Only managed to tear up a few minor things, but it was just getting 'broken in' when I quit riding it. I used it for pleasure 90% of the time. Shoulda bought a Raptor, looking back.