I wont spend a dime on Merrell anymore. after being a customer for well over 5yrs i have found the last 3 pairs of shoes to be absolute garbage in construction. My first pair of merrells nearly lasted 3yrs before anything significant failed. I naturally bought a couple pairs of the same shoe (my urge for backups has spilled into multiple parts of my life) last year. In that time I am on the second pair already. The first lasted about 8months and the currents are already breaking down at 3 months old. the thing that makes me most disappionted was the insoles. they used to come with the best insoles on the market. those thin ones that molded to your feet. now its a piece of crappy foam that holds moisture and tears apart. f-ing garbage.
Keens are well constructed and alot of people love them. I personally found them very uncomfortable from the start and never was able to beat them inot comfortable.
Oboz....the one pair i tried, Sawtooth, was a POS after about 1month of actually wearing them. I bought them for a trip in the SW. they were awesome bouldering shoes and had great contact on stone (concret as well). Unfortunately, the toe cap(?) caved in on one shoe, the other side caved in a few months later, and the tread vanished really really fast. the made my knees and hips hurt after about 4months of near everyday wear.
North Face and Salamon are narrow for me so ive never worn them. but i have several friends with both. they love them and they seem to last a long time (one friend has had his North Face for 4yrs and they look near brand new).
If your looking for cheap several friends wear Hi-Tec's. but they dont make them big enough for me.