Yeah, the dual-purpose ones suck, IMO. Used one in Korea for a coupla years, and just gave up on drying. It got HOT, hot enough to melt/shrink some clothes, but they would still be wet as you say.
I don't even remember the brand of mine, but I know it's a 1999 model, and still going strong. As I said above, when I set it to high spin, the clothes are barely damp when I pull them out. Put it this way... I have NEVER had a single drop of water hit the floor when extracting the clothes.