Don't go cheap on tires, they are the ONLY and DIRECT contact between your car and the road. If you ever autocross/race, you will know number one improvement on handling is upgrading the tires. No matter how good the car is even a super car, if you put on cheap tire, you literally killing the performance. Also, good tires are also good for your safety as well.
If you want the tires to last and also offering good performance, buy ultra high performance all seasons tires like the Continental DWS or something similar which will last you like 40-50k miles while providing pretty good comfort and handling performance.
Places to buy tires with good value: Discount Tires Direct, Ebay.