The thing I like about Discount Tire is they way they will come down in price so easily.
My wife's sister was in town and she exploded a rear tire. I noticed all were worn slam out so I called my bro-in-law and told him what was up and said I'd take it in to get replaced if he wanted. I went down to DT and the price for the tires came out to $1100 and some change. I mentioned that the tires were for my sis-in-law who's husband is down at Ft. Benning and he dropped the price to $850 just like that since it was for a serviceman's car.
Two weeks later I needed tires for my truck. Same thing, tires were like $990 or something. Guy remembered me and I jokingly asked "you gonna give me a good discount" and he told me yep, since I buy all my tires there. Gave them to me for like $825 out the door. Last week I took my wife's truck in for tires and he remembered me again. They didn't have the tires I wanted in stock, so he split the difference on a better set of tires and gave me the no sales tax promo they were offering on top of it. Saved over $100 again.
I've never had luck like that with a local tire place, sorry to say it.
But I did buy my son a model rocket kit today at a local hobby shop, so I'm not totally evil.