If you're a decent wrench it's probably not a big deal but it would be more time consuming than I would want to deal with as I would be switching far too often. A typical week for me has me riding my fixie a few times on weekday evenings, a Saturday group ride on my roadie, and 1-2 solo rides on my Tri bike. It's nice to be able to grab your bike and go without doing much but pumping up the tires.
I think the Soloist is an awesome ride. I just couldn't see myself screwing around with cables every time I wanted to switch up for a specific ride. That's just me though...more power to ya
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Fredo, you're my older brother and I love you...but don't ever take sides, with anyone, against the family again...ever.