Yes, but with a T1 line, you get priority support. We had a tech on site within an hour when one of the T1s went down. That probably would not have happened with business DSL.
Again, like I said before, I understand what a SLA is and the level of service you get when you have a T1. At the beginning of this thread, someone was asking about upgrading a 50/10 residential line, and someone else mentioned a T1. My comments had nothing to do with the SLA, priority service, or anything else other than the speed of the line and the fact that a T1 is a pretty mediocre amount of bandwidth these days...
Appologies to the OP...this thread has now substantially digressed from its original purpose...