I'm not sure what you mean by T style. My grandmother had an umbrella type and I grew up with a retractable and that is what we have now, like this http://www.organize.com/clothesdryer.html
. My only comment on the umbrella type is I am not sure they make them as sturdy as my grandmother's was, the pole was a strong metal like you find for a tether ball pole and the umbrella never sagged, she could rotate the top to so as not to move around to much. With the retractable I put the basket on the ground and move around a bit to hang, but hey, it's good exercise.
Either way you will save electricity and help the environment with a clothes line. I love ours and have used in from warm spring days through early fall for 10 years and I live in Oregon, where it rains a bit. We have the retractable mounted to a wall of the house, then my husband put an extension of wood up from the shed the end is mounted to that. My parents currently have the extendable end mounted to a tree. When I was little and we live in a different place it was mounted between two trees. We never un-retract it, but one could if they must. There is a lot of tension in the lines so it can be a bit tricky to initially set up. Mine will hold at least a load of laundry, possibly two depending on what I wash. Often on a really hot day the clothes dry faster than they would in the dryer. So I am taking down one load as I hang up another.
Another clothes line tip...people complain of stiff clothes and yes this does happen. Most soften with use. But a warm windy day will yield softer clothes than a blasting hot still day, both conditions will dry your clothes but with different results.