The Canon RF 24-105mm F4 L IS USM has now dropped to $819.00 from deals-all-year via eBay. Since this is not an authorized dealer, a 1-year Canon USA warranty is not guaranteed. They are, however, a reputable store.
If grey market is a concern, please consider our street price of $879, brand new from an authorized dealer, with a 1-year Canon USA warranty. No tax is collected to most states.