new here...thinking of trading in the M3 for an H3 (thoughts?)

[f5fstop]

I faced the same dilemma you have, except for different reasons. I moved from TN to MI with a Jeep Wrangler (for off-road and a daily driver), and a supercharged C5 Corvette. Since moving here June 1, I have decided to dump both and move on to combination of the two.
The Jeep is a dog, but great off road, and is used to take me into places that most won't go, but not for off roading per se, but for photographs. It is also very uncomfortable to drive for a DD. So, the power of the H3 is not a big item when compared to a Jeep Wrangler.
The Vette is fast and has a great interior and so does a loaded Hummer (have a great interior), and it is a lot more practical. So the H3 is capable of replacing the creature comforts that the Vette gives me. Besides, I will not miss all the ricers who pull up at lights wanted to see who is the fastest on the street. For one thing, I will never race on a public road; too dangerous and to easy to lose a license for a very stupid act.
One of the main reasons for getting rid of the Vette is that since my move to MI, I have discovered that off roading is standard on the so-called paved roads. The Vette drags on these roads; which I might add are the worse roads I have even encountered in my life. My radar detector falls from the windshield almost every time I drive it, and I'm constantly worried about blowing the low-profile tires and damaging a rim on the sharp edged pot holes which seem to be the norm in this state. Besides, when winter hits, it would be garaged for a minimum of three months, and I would be confined to driving the Jeep for this period. Driving the Jeep on these roads for a full three month period would probably cause my kidneys to shatter. (Imagine driving the Moab trail for three months at 45 mph?)
So, the H3 seems to be the only vehicle (other than an H2) that seems to fit the replacement requirement I have.
Nice comfortable interior, with more room than a Jeep or a Vette, nice to drive on the highways, decent mileage (for me that is around 18-20 hwy), but can go off road at any time. And is has tons of character, which those of us who drive M3s, SVTs and Vettes love.