I recently stumbled upon a tire shop close to home that removed a shreded tire before I dropped it off at another shop for repair. The cost to remove the tire from shop #1 was $8 and I tipped $2.
The new tire came from the TireRack and I had delivered to one of their installers since I have no room to lug both a wheel and tire in the Boxster and I don't want to bother somone else to follow me in their own car. Shop #2's fee to mount the tire was $25 with taxes. That's $100 to mount all four for you guys keeping track.
That seems a bit more than the $80 I last paid which itself seemed high.
Now keep in mind both of these shops are tiny.
What do you typically pay to have tires mounted?