We use a lot of rice in our house, so we want to find a good source that we can buy in large quantities. We were at Costco today, and they have large bags of non-organic rice for about $1.50-2.50/kg depending on the type of rice. Since we usually prefer to buy organic, we held off, but when we went to Whole Foods and checked out their bulk section, we found that organic rice ran $7-9/kg, which is a LOT more expensive.

My question is, is rice one of those foods that is really worth buying organic? What are the environmental impacts of non-organic rice. Does it tend to carry a lot of pesticide residue? I'm sure there is a cheaper source of organic rice in this city than Whole Foods, so I'm trying to decided if it's worth the trouble to look for it.