Originally Posted by Vitoco
You do have a valid point but on the other hand, if you live in a place with no "real" winter it would probably mean you live in a warmer climate and have hotter springs/summers/falls so during these season you would still want a tyre with characteristics optimized for those seasons ----> a real summer tyre. With an all-season setup you would still have a bad setup throughout these seasons, dont you think?
All season tires, much like your 4 door sport sedan, is a compromise. Its not as good as summer or winter tires, but its design for a wider range of temp.