I purchased my Blazer in 2006 with 136,000 miles on it with the intention of using it mostly for towing my boat. Baby came, sold the boat, now it's a daily driver. Long story short, it's been a great vehicle. I now have 185,000 miles on it and have only replaced the alternator. I average 20+ mpg on the highway, which I feel is excellent for an SUV with that many miles. The 4x4 is sure footed and has never failed me. My only beef would be the braking could be a little stiffer, but I've had that complaint of all Chevy's, so maybe it's just me. My dad has a 98' blazer with close to 300k miles. The 4.3L runs forever! I will definitely keep my Blazer until it rusts into oblivion.