This is, of course, highly dependent on what kind of trips you like to do. More above timberline and steeper routes (eg Great Gully) would tend to require more crampon use.
Also some years have little snow leaving lots of icy trails (or you get rain followed by cold cycles) and some other years have a lot of snow.
And the same trail can change radically: I have hiked Chocorua when you needed crampons just to get out of the parking lot* (and every step of the way up); at other times snowshoes could be required for virtually the entire way.
* A rainstorm/melt had flooded the parking lot which then froze into a skating rink... This also made the trail very icy/frozen snow.
Doug
I agree, conditions change day to day, year to year & state by state.
My personal preference is not to add any more weight to my feet unless i need it. On the most popular trails when hard packed, they support me, I'll carry my snowshoes. As those trails get steeper & may come out above treeline, I opt for crampons which I'd likely need above the trees, no need switching to snowshoes at say 3500 feet & then crampons at treeline.
The 99-00 winter started late for snow, I got several hundred feet up on Osseo before seeing any snow on 1/2/00. A couple of years ago, right after Christmas, Sawyer River Road was open.
Some trails south of the Whites get less snow, & in some cases more traffic. Not sure I've ever seen snowshoes on Monadnock, prorbonly for people taking the more scenic trails but not the main two from Park HQ or half-way house. I believe the 94-95 winter in CT had very little snow, I did several AT day hikes late in the season with barely any ice or snow.
Still should bring the gear when up North.
Tom,
I'll be looking for a sunrise trip on a Friday in early December, something quick & not too hard. At this point, leaning towards Westkill, Twin or Slide. have to be at work in CT around 12:00.
Since I'm lookiing at about 3 hours of hiking for this trip, if a lot of snow & ice, I'llopt for MA AT.