I'm up against that same decision again. My front two tires on the 100 have significant wear and I know I can't stretch them to winter. My Ouray trip is coming up next month, though I won't be doing anything serious, and I may get new boots before then. Not sure what to go with....wife didn't like the look of the Duratracs on the 80, though I was impressed with their performance for the short time I had them. Since I'm on 18's now, I think my options are fewer and more costly. The primary driver has requested that I not lift the truck or put huge tires on, but easy trips like Webster and Black Bear are likely uses...as well as snow trips up to the ski areas.
1978 13BT-40, 70 series mechanicals
1966 FJ45 lwb stock
2003 100 stock
1974V8J40, 1992FJ80, 1985FJ60, 1971FJ55, 1978FJ40, 1974FJ40, 1997 LX450 all long gone.