That shaped up nicely. Wires looks nice.
Yeah, a lot of people try to avoid nurbs, but there was a time when nearly everything was modeled in nurbs. Characters, planes, cars... you name it. I don't really like the idea of patch modeling an entire character, but I've modeled vehicles in nurbs before. It's not that bad, and results can be very nice.
But yeah, I would say stick with what you're comfortable with for now. Until you're comfortable enough to step outside of your comfort zone... if that makes sense?
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"Your weapons are no match for ours! People of Mars, surrender!"
"Um, this isn't Mars. This is Earth."
"Earth? Earth-with-nuclear-weapons Earth?"
"Yes."
[long pause] "Friend!!"