Players with more than one card slot?

Still no players with more than one card slot? Is it so hard to make one? There are some who want a player with 4 card slots, although even a player with just two card slots would please many. It seems like mp3 player development died around 3 or 4 years ago, and there aren’t any new player better than the Clip+ or Fuze for under $100. I guess many companies would rather sell media players that are $150+ or phones that are priced even higher than that instead of selling $50 or $75 mp3 players.