The cromoly steel version can be had for a little more than half that price ($5K) and only adds a couple of pounds of weight. After owning a Spot Brand steel human powered bike, I'm a big fan of cromoly for a city commuter. Nice and forgiving/absorbs the bumps well. With a Body Float, my Spot rides great. Now, I've never ridden a titanium frame bike but it is hard to imagine it being worth $4-$5K more than the steel version. As I posted elsewhere, for a minimalist, this bike would be a great option and I would give the steel frame version serious consideration under two conditions: this AIO Zehus hub was a proven design (doesn't seem to be much evidence of real world many miles application) and there was an easier way to test ride the bike (not realistic to travel to Vermont just for a test ride).