Checked out e-infinity a little and found: prices are similar (only a new Z8 costs $3400 at e-infinity as the lowest from everywhere, and costs $3553 at Panamos, $4000 at Nikon; other cameras cost about the same); e-infinity offers fewer products; e-infinity provides a one-year warranty (assume same local or non-Nikon service as Panamoz), Panamoz provides 3 year warranty. For US delivery, e-infinity ships from Hong Kong and Panamoz from the US warehouse. Delivery time is similar ~ 7 days (wonder if from Hong Kong could take longer). Nothing much can be found about the e-infinity company. I doubt products from either seller are allowed to be registered at Nikon USA and receive paid services from Nikon USA (but some people did).