My '92 (sucessor to a '90 I owned)is an everyday driver (that means through Chicago winters)that now has 90,000 miles on it and is still going strong and I expect it to keep going for 50K more and beyond.
I just love this car. Whenever it is time for a new sports car it will be another Miata.
Top down / handling / reliability / design. A pure sports car.
The ability for more power on demand. A factory turbo is an appropriate option.