The B727 is one of the most reliable aircraft still in service today. B-707 is right, if I had a choice between the B727 and a younger model, no question which aircraft I would prefer. With most of the American major carriers starting to get rid of the airplane during the early and mid years of the new mellinium, it will be hard to catch them flying in another ten years or so, therefore enjoy as long as we still have them around. To answer your question Diego767; you will find most tail-mounted-engine airplanes drag a little on take-off. First because you have the additional weight of the engines in the back, but also (more importantly) the thrust developed is being produced in the rear. Next time you are out @ an airport, check out DC9s/MD80s/B727s and (if possible) some of our Russian friends, as the Tu134/154 or Il62. They all seem to drag along the runway a little longer than their counter parts, who have their engines under the wings. By the way, the DC10/MD11 and L1011, have the tendency to be a little bit on the dragging side as well: enjoy!
And don't be afraid of them.