Where should I send my broken Nikon d3000?
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I believe the aperture blades are stuck. Should I send it to Nikon or find a local repair shop?
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I'd check the Nikon site for authorized Nikon repair shops in your area. I like using authorized repairs places for all our things as they usually use authentic parts for the repairs and they know your item very well.
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As mentioned, the lens aperture leaves are in the lens, so all you have to do is send in the lens for repair.
This may be a good time to upgrade your old lens to a 18-200 mm or 18-105 mm single lens solution.
I recently sent in my old D300 for an auto-focus issue that started happening after I was hammered by a football player when I was shooting from the sidelines.
Nikon replaced the auto-focus system, the cameras shutter, the base plate and cleaned the whole camera including the sensor for under $250. Since the cost of a refurbished D300 is still in the just under $1,000 range (if you can find one), I think I got a deal. And Nikon did NOT "screw" with me at all.
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A Nikon D3000 does not have aperture blades, but the lens does. If it's the kit 18-55mm lens, then it would be more economical to buy a replacement. You can find used ones for under $100 on Craigslist or Ebay.
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Most corporations are awful and overpriced with their repairs. I can't speak for Nikon, but I tend to prefer local shops for repairs. Most get it done faster, cheaper, and don't try to screw with you.
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If the lens is the 18-55 kit lens then chances are repair will cost nearly as much as replacement.
Check out Ebay for folk selling off their 18-55 after an upgrade. They sell pretty cheap