Good points. My kid and wife always go with me. Its priety hard to take a little kid back packing, but the entire family can enjoy wheeling and short hikes. Its a great way to have HIGH quality family time. I realize many guys are stuck with women who hate camping...Sorry...

As far as remote sites, here are some more great examples....

1. Dead Mans Point Utah, you WILL NOT see another person, but have canyons 1000s of feet deep next to your campfire, with a shelf for protection and trees, Green River below and 360 views of the canyonlands.
2. Arch Canyon Utah, a day in or out, endless stream crossings, ruins, animals, in a tight BEAUTIFUL canyon. Good chance of seeing back packers only.
3. Lavendar Canyon Utah, camp in a shelter cave below another with cliff dwellings in it, unlikely to see humans.
4. Dusy/ Ershim system, Sierra Nevadas, in weeks of wheeling have NEVER EVER seen another person except at the trail heads. Drive up a valley similar to YOSEMITI, with no people! Fish till you drop at hundreds of lakes.
5. Fordyce Creek Trail Sierras, will see people on weekends, but camp off the trail on a Tahoe Blue river, with a 75'x10' waterfall in front of the campsite and a 50' high monster behind camp!
6. " 10 Mile!" Utah, camp on the Green River after driving half a day through a delightful canyon. Unlikely to ever see people at the end.
7. Hole-N-The-Rock utah, may or may not see other people, but plenty of places to go and not see them, like the Rincon.
8. The Maze District, good chance of seeing another vehicle, but it wont feel like people are around, and if that is too crowded, try out Queen Annes Bottom.
9. Jail Canyon in Death Valley I have never seen another person, lots of old mines and a Mill next to a lovely stream you can still work the equipment by hand.(not rusted up)
10. Grizzly Lake, Colorado, biggest alpine lake I know of, likely all to yourself except for an occasional fisherman hiking in during the day..

Just a few favorites.......