Hex Drivers
I just bought a good hex driver set, or so I think I have, at my local hobby shop. He basically had 3 types... mostly Duratrax, a few Associated, and a few Dynamite.
The guy behind the counter, as well as some other customers chimed in and all said the same thing.
They were all insistent that:
Duratrax drivers are junk. He showed me the tips and they were worn out. He uses them to "pry" things...
Associated drivers were very expensive, and had a Titanium Nitride tip and are one of the best set of drives you could get.
Dynamite drivers had a hardened steel tip, but they were absolutely the best and most durable set of tools you could buy. He/they said that while the Associated drivers were one of the best, the special Nitride tip would eventually fade and still couldn't match the durability of the Dynamite ones. Said that they would last a long, long time.... without replacing the tips.
So, I ended up buying the Dynamite 4 piece set.