As you get into the really expensive design stuff from brands, logos disappear. And of course, the people who buy the expensive stuff consider the cheaper stuff to be barbarian.
The expensive stuff still bears the trademark of the brand, the lead designer, or the collection. It's more subtle, but ultimately the reason why people buy it. And some brands really just sell the logo at a high price, like Hermes or Louis Vuitton.
Expensive Hermes stuff doesn’t tend to have logos. In fact, not many of the cheap things have logos either.