You don’t necessarily have to give up on a shoe model just because it is no longer manufactured. I found an ad for NB 806’s for $24.95(!!) here:
http://www.sportsensation.com/running/r/Mens_Running_Shoes/New_Balance_806_Trail_Running_Shoes_Mens_1132399.htm
Have no idea if they are really still available at that price, but it seems likely you could still find some of these if you looked hard enough.
By the way, if choosing shoes for a thru-hike (about which I have no experience) is anything like choosing shoes for marathon training (about which I have quite a bit of experience)just about everything about the performance of a particular shoe, including durability, will depend upon the wearer.
For example, someone mentioned shoes wearing out in the toe area. My guess is that this is happening because this hiker has a strong foot with powerful push off that moves through the foot clear out to the toe. Think of a tiger clawing the ground. This guy will be much harder on the toes of shoes than someone who simply picks up the feet and lets them fall. Neither gait is necessarily preferable, but the same shoe won’t necessarily accomodate both.
Cushioning is highly individual. We have a built-in cushioning mechanism called pronation. Normal feet hit the ground initially on the outside edge and then roll to the inside to absorb the shock moving up the leg to the ankles, knees and hips. Unfortunately, many of us are not normal. My flat, flexible feet overpronate. Think duck feet. This puts undue stress on my ankles and knees from the extra torsion. A cushioned shoe just exaggerates this problem. I don’t need a cushiony shock absorbing shoe, I need one with a very firm heel and a built up medial post to keep the foot from rolling so much.
Some people are just the opposite. Their high-arched feet are rigid and don’t roll enough to absorb shock. These folks need to supplement their bodies’ shock absorbers with cushioned shoes.
I’ve got to the point that I can look at someone’s picture, guess their foot type and be right more often than not. I’ve seen yogi’s picture and I’m betting she has fairly high arches and somewhat rigid feet. That’s why she likes cushy shoes.
Running shoes are nearly all classified by the manufacturer as Motion Control (for overpronaters), Stability (for “normal” gaits) and Cushioned (for rigid feet). For reasons which elude me, trail runners are not so classified. Montrail, probably the leader in trail running shoe technology, has made a token effort to do this, but last time I inquired they were using a single computer-modeled proprietary last for all their trail runners. This approach will prevent them from ever making the perfect shoe for me. Flat footers need shoe constructed on a straight last.
Wayne Kraft