I'm just wrapping up my 8th year of traveling solo in my TC for 6 months. Typically that involves about 9K miles and a 3 month trip to Montana. However, in 2012 I went to Alaska and that year was 12K miles total, with 9K on the AK trip.
I usually camp 90 to 120 nights a year. This excludes "driveway camping" at friends and family locations.
I'm not tired of my TC life after 6 months, but it is nice to get back to the comforts of a house. :)
Good luck on your trip!! I'm sure your kids will talk about it when they get old. :)