PMI is a Authorized Dealer (Reseller), Check the list here:
Thanks for all the personal experiences.
Yeah, I knew that PMI is an authorized dealer. So if PMI's ebay ad says "Dealer" and I purchase it, I would be the original purchaser and thus the warranty will be covered by Canon USA. However, if the PMI ebay ad says "Reseller" and I purchase it, I probably would not be the original purchaser and there still may be a question about whether the warranty will be covered by Canon USA. Best to get this stuff in writing from PMI before I suppose.