There are no such things as "stupid questions" there are only stupid people. I am glad to say that you do NOT qualify as this is an intelligent question!
If you want to upgrade and are a current subscriber, your best shot to get out inexpensively is to call D* and let them know you would like to upgrade to HD. When I did, I was gifted with an H20 receiver, 5 LNB dish and multi-switch for 14.95. Just remember to be nice as they do not owe you anything, but D* takes way better care of customers that E* ever will. I do subscribe to 3 services D*, E* and Comcast so I know.