One gets the impression that A/S was designed by the big 3. They had to find a way to satisfy those folks who lease their vehicles, and don't want to shell out another bundle for winter tires. After all....most of their cars are sold to a population that sees snow only if they go looking for it. I have trouble thinking of the Texan going into his local tire dealer, and being sold a set of A/S.
I agree with the JMN!
Summer tires so you can enjoy the sportiness of your vehicle (Yaris included), and winters when the going gets tough. In the end, if you keep your car as long as Ovr50 says he will keep his HL, you will end up spending the same amount. You'll get about 5 years of average annual driving from summers...same for winters, and unless you get some rock hard A/S's you should only get about 3 years from them.
Thanks, but I'll go the safe route.