I have had price match from Audi in the past but only bother if the car is going in anyway.
These days I tend to buy from Black Circles/Tyre Leaders then have the tyres fitted at a local company who have a reputation for looking after peoples alloys, using torque wrench etc. (£15 a wheel) The one I use has a non-contact tyre fitting machine that doesn't clamp to the inside of the rim and no bars are used to remove or fit the tyre.
If you don't know reputation, look on black circles and you use their tyre fitting partners they are rated and reviewed. They have "premier partners" with higher ratings, but you makes your choice and take your chance.
I wouldn't use our local ATS because their reputation is not great and people have said they have seen their fitters leave the bar in as the tyre is removed, but it's down to management and the care each individual takes so can't tar all ATS depots with the same brush.