For us the move was somewhat of an unknown before it happened. After we moved we wished we had done it sooner. There's some things that are missed about Vancouver, and when I can think of them I'll tell you……
What I really love about Kamloops (for example) is the freedom to do pretty much anything you want. I can hop on my bike and ride for 10 minutes and be where you probably never see anyone. I can drive for 15 minutes, unload the dirtbike, and be in complete wilderness (and I have many areas in which to go). I have Sun Peaks just 45 minutes away and Mt Harper just around the corner.
The drawbacks of small town living are obvious: small town mentality, big time religious overtones, lack of good eating establishments ;), social problems are more in your face. Whereas in North Van, you are so sheltered from social problems that its almost like living in a gated community.