Tires

I have a prius. My tires only seemed to last me 16,000 miles. I tried the nokian wrg2's and they are amazing. I am on my second set which i got 52,000 miles out of, unlike the integrity's that came oe. They work really well for colorado. They are a snow tire too with a 50k rating. They're enviromentally friendlly too. The only problem is they were $750 for the set. I'm new to this site and figured i'd ask around to see if anybody has had the same success with a cheaper tire. Any suggestions would be helpful. Thanks.