I just feel like hang drying t-shirts is such a pain in the ass, especially when i paid $20 for them (even if they retailed for $150 or what-have--you). You have to separate them from your regular laundry, take them to a place to hang them where they won't drip on the hardwood floor, assemble them nicely on the rack etc. Then when they're dry, they always get wrinkled and linty so I have to spend time ironing and delinting them with a clothes brush.
T-shirts should be simple and unfussy, but then I experience sadness when my favorite t-shirt becomes mid-rift baring. I've tried sizing up, to account for shrinkage, but then it becomes a chancy proposal to determine if the shirt will shrink properly.