Have you taken a look at an older Cirrus?
I have a 2001 that I've flown regularly for the last three years.
I looked at the your trip VCV-BOI.
In my plane in no wind conditions running at 64% power that would take 3 hours and 13 min. You would burn 43 gallons of fuel. If you wanted a comfortable hour of fuel reseserve you would still able to bring 820 lbs of people and luggage.
You can pick up older Cirrus planes like mine for 140-165K with total times in the 800-1400 hour range all day long. I think used Cirrus's are a real bargin right now because they sold so many the last 10 years the market is flooded now when times got tough.
Any Cirrus you pick is going to have twin garmin 430s and a nice auto pilot plus a large MFD.
I have gone on fly outs with strutless 210 and the cirrus will out climb them and out cruise them and burn less fuel doing it.
Your pocket book will thank you at annual time too. My annuals have been about the same as my 182 annuals used to be, which make sense in that they are both fixed gear singles with 6 cylinder engines and constant speed props.
It has a parachute. While that may not matter much to you and me as pilots, I have been shocked at what it does for your friends and family. Once you show them the handle and explain how it works you can see their tension release and that makes them enjoy the trip more and seems to really reduce the number of ones that get air sick. (there are times like when I'm VFR on top in the mountains that I like the chute myself)
The Cirrus is not the backcountry plane that the 182 is but its fine for maintained dirt or grass strips I have taken mine to moose creek and i keep it at my house where i have a 2000' dirt strip at an elevation of 5000'. It does scuff up the wheel pants over time but i just live with that.
Here is a clip of me landing at my house I use about 800'
http://www.youtube.com/watch?v=QMaJZ7AQPRkIn my opinion the over all view is better out of the Cirrus than the 182 do to the lower panel and the larger windows.
Thats what i like here are the down sides:
I don't like the feel when hand flying, its ok but i liked the 182 and my Cub better.
Parts, I havent had any problems getting them but i have to think cessna is a lot more stable in the long term as far as companys go.
Coolness, this goes both ways nonpilots and younger pilots seem to really like them but you get a lot of plastic plane comments from the older crowd.
Anyway thats my 2 cents, I would leave you with this though before you spend 200k on a plane, take a cirrus on a short cross country trip, theres a reason they have been the best selling single engine plane for the last 8 years.