4 hours of life in 10 minutes, and in general, is just way, way faster to charge. Wireless is nice, but it's always super sloooooooow.
It's 7 PM right now, and the battery on my Nexus 5 is at 86%. The last time I gave any conscious thought to charging my phone was weeks ago. That's just not possible without wireless charging. Who cares that your phone charges slower when your battery never drops below 50%? USB-only means that I would go back to forgetting to plug in my phone when it needs it, and having to scramble to find a (new, not yet common) charger. That's a step backwards, and it's a deal breaker for me.