T1s do have their advantages. T1 bandwidth is 1.544mbit syncronous (upload and download) and it is full duplex (meaning you can upload and download at the same time). T1 circuits are usually SDSL circuits, so if you can find a DSL provider in your area willing to sell an SDSL circuit, that may be the road to go. T1s generally are sold with a full class C of ip address space, monitored 24/7, repaired 24/7, speeds are usually guaranteed, and other services from the T1 provider may be included (like access to usenet servers, etc). T1s also can be extended farther than the 15,000ft restrictions that a lot of DSL providers have to abide by. Depending on the package you get, you can rent a router from your provider and let them manage it, or you can buy your own.
But as others have said, you most likely won't get a T1 for less than $500 a month, because of the services they offer.