I am so glad that Michael Bush responded to you. I gave my short nothing response and left to go out to dinner and then felt guilty that I hadn't addressed your question - Michael is so patient with all of us....
The only thing I would add to what he responded is that a number of the beekeepers on this forum, including me, are trying to get our bees to be as chemically free as possible. When you use starter strips, then you are limiting the amount of man-made (and usually contaminated with poison from chemically treated hives) foundation that you are putting in the hive.
I see the advantage to starter strips as:
1. Your bees get to build their own choice of cell size, thus hurrying up the process of "natural cell" beekeeping
2. You limit the amount of poison from contaminated foundation in your hives (if this is a goal)
3. You save money because one sheet of foundation can be cut into numerous strips of 3/4 inch in depth
Michael's site covers all of the above and more in much more detail, so do go to the references he gave you.
Linda T more patient after a delicious dinner in the mountains of N GA