A few friends on the forum would be aware of the fact that I currently own and use a canon 60D and a canon 100-400 L IS USM as my primary equipment. Now that I've made up my mind to get myself a longer lens, the canon 500 f4 L IS USM II seems to me the logical choice. However, the relatively high price of the lens brings in a second thought.

It is to be noted that when the canon lens starts shipping, it will retail at close to 10,500 USD, while the nikon 500 f4 AF-S ED VR sells at a little over 8000 USD. Would it be right to stick to canon despite the 2000 USD odd price differenece, or keeping in mind that I really do not have enough canon equipment to say that I have kind of been tied up to canon forever, sell off the canon goods and shift to nikon? Please keep in mind the weight difference between the canon and nikon goods while making a sugggestion (in case of the 500 f4, this is close to 650 grams).

Regards