Don't look at me.
I still have a nice fully functional StarTac phone that serves me well.
As for overpriced stuff, just look for the word "Audiophile" for a multitude of examples. They range from power cords to outlets to speaker wire. In all cases the stuff you pick up at a local Radio Shack (as long as they stay in business), or hardware store are perfectly acceptable, and do the same job. These people don't believe in A-B tests (double blind!) at all.