Drain Rescue Plumbers

We had a small sewage back-up in our basement on a Sunday morning. I googled these guys and called and they had a serviceman here in a couple of hours. He came in and sent a camera down the drain, called me in and told me he couldn't get past this mass of tree roots (without even trying to snake it). We had clay pipes, the pipes were busted and they would have to dig (under my cement driveway) but the good news is they could have somewhere here tomorrow, replace a 5' section and replace it with PVC pipe for $3800, that was reduced to $3400 when I hesitated at making a decision. I said I wanted to look at other options as i wasn't too excited about having my driveway ripped up and was told he'd hold the price until 9pm that night. I called another company. They came in, snaked out the drain and provided me with a CD copy of the video, showing the tree roots in the drain on the city part (down by the street) of my property, all for $475. Unfortunately I had to pay $280 to these guys first just so that they could try and panic me into doing the quick repair. Pretty sure i won't be hearing back from them.