Pacoo said..
I have not seen a hollow board surviving more than a couple months over here, in my case not even one month.
I have seen people opening valves and release like half a litre of water in a new board. I heard about issues with the gore tech, the changes in temperate, lack of impact resistance, etc.
Do they work better? Yes, but I would ask for the warranty conditions.
Mine was replaced under warranty.
Which brand boards are you talking about?