I've owned lost of cheap things that worked great....Not to be a heretic, or anything, but I've been using the A-data 16GB cards in my D200 for many months now. No problems so far. No moving parts.
When I first got them I had the same anxieties so I filled them up with files from my computer and transferred them back and forth, formatting in camera each time, several times. I didn't find any internet chatter about them being less reliable, failing more often, etc than others. They definitely aren't the fastest cards around, but that's not an especially high priority for me.
I'm not sure that the biggest brand names are always better in every circumstance. Well directed marketing is very influential. Just look at the insanity around bottled water.