Oh, I remember why I bought fillets the last time after reading this thread.
They make for some great Beef Wellingtons. That's one place where they pick up the flavor of the stuff they are cooked with, and make for a very tasty meal when the packet is sliced open.
Flank steak is one of my favorites, dry rubbed and quick grilled.
Stopped by Esposito's butcher shop (New York City, 9th ave and 39th or so) on the way home on Friday and picked up some top sirloin for $4.99 a lb. I would have to say it's texture was very close to fillet costing four times that, and the flavor so much better. Unless there's a great sale someplace else, I may start buying all my meat there.
As to the questions of what cut is this where you live, one website I've used for many years, and it has great information -
www.askthemeatman.com