Online Tires vs. Local Tire Shop
 

Is there any real difference between the local tire shop installing wheels and tires and buying wheels and tires online and jacking up the car yourself? Are there any special issues I should be aware of if I buy a set of wheels and tires already mounted online and put them on myself? It doesn't seem like it would be anything more than getting a torque wrench and making sure the lugs are properly set. Any advice would be great!

Easier to return the stuff if you're unhappy ( read - no S/H holdback ). Easier to go after them legally if you're REALLY unhappy, especially if they are in another jurisdiction ( e.g. shipping to Canada from US ).