I think I am converted. Got a little worried about the whole "warranty not valid outside usa". They use the term international, Canada is not international, is it?
Anyway, called davis, and got a Toronto distributor. the 6163, wireless anny, and serial weatherling is 1073.85 u$ from Ambient, approx fx is C$1127.54. This place in Toronto wanted C$1714.85.... for 600 bucks I could drive to buffalo a few times, to enact my warranty, if needed. They also said low price people on the web were not official Davis dealers, I set him straight about Ambient...
Other than warranty issues, which may or may not be true, my only problem with ambient, is UPS shipping to Canada.
Andrew