Because you want a vehicle from a company noted for absolutely terrible reliability?
Actually, I just bought one a month ago to complement my Volt (which my wife hates even riding in due to its somewhat diminutive size). We bought it because our 2009 Town & Country Limited minivan was a bit long on the tooth, with half a bajillion miles on the clock, but still running well. Aside from wear items (brakes, tires, shocks, etc.), it's only suffered one nasty recall (ignition key module) and one nasty bug (leak in heater core plumbing). Otherwise, not bad. But what is bad is gas mileage - a lousy 15MPG city (most of my wife's driving). We were spending $300/month on gas on the T&C shuttling the kids around. With the Pacifica Hybrid bought exactly a month ago today, we've used 1/4 tank of gas so far, with all of the same basic driving patterns. I figure about $50/month in electrons is WAY better for my wallet and the environment than $300/month on dino fuel. Plus, that's incrementally less oil that needs to be imported from the caustic Middle-East. What's not to love about that?
Anyway, my Volt's drive train is certainly more sophisticated and configurable than the Pacifica's, but in terms of roominess, luxury (we got the Limited model), creature comforts, etc., our Pacifica Hybrid absolutely flogs my Volt. Just goes to show that plug-ins are going mainstream sooner than most of us would have expected a year or two ago (though not as quickly as we'd hoped for 5 or 6 years ago). My Volt and our Pacifica Hybrid are the best in their respective classes now, and will pave the way to even better things to come in the next several years. CrossVolt anyone?