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eBay USA top rated sellers Get It Digital & All New Shop have great deals on Canon EF 70-200mm f/2.8L IS II USM lens and EF 100-400mm f/4.5-5.6L IS II USM lens. Note, both are from grey market.
Canon EF 70-200mm f/2.8L IS II USM lens – $1,699.00 – at All New Shop via eBay.com
Canon EF 100-400mm f/4.5-5.6L IS II USM lens – $1,699.00 – at Get It Digital via eBay.com
Regular price for EF 70-200mm f/2.8L IS II USM lens is $1,949, and EF 100-400mm IS II lens is $2,099 at most US stores.
Note: These are import models, without Canon USA warranty, but you get 3-year warranty from Get It Digital & All New Shop. There are no physical differences between import models and USA models.