Hi, [insert recruiter's first name here]-
I've gone to some lengths to save everyone some time by maintaining a FAQ page on my resume website: http://resume.livingston-gray.com/faq.html
I've even gone so far as to change my LinkedIn profile so that it directs recruiters to read the FAQs before contacting me about relocation opportunities. So, thank you, [recruiter's first name]! By carefully ignoring all of that information, you've freed me from having to feel even remotely guilty for sending you a canned response.