I started a thread a few months ago about the necessity of balancing your tires each time you rotate. Now, I'm wondering, assuming you detect no unusual wear or handling problems, why even rotate tires? I mean if there are things going on like vibrations it is probably indicitive of another problem.
Rotating tires is suppose to make the wear even so that when the time comes you replace all four at once, thereby streatching out the replacemsnt schedule. But they will be replaced. So what if you buy two a little earlier than four? Now I can see some rough road situations or various drive type vehicles and those that weigh a whole bunch putting extra wear on but for most situations is rotating tires really necessary or economical (especially if you have to pay for this each time)?