Here is a great video from Jimmy Lewis which will help anyone who doesn't understand what they are paying for in a premium board. "Sandwich Construction"!
Not all wood boards are the same, and like wise you do get what you pay for.
Here you can see the GTW construction on a Nalu. This board does not use Bamboo, but Australian Pine, but it is laminated on both sides as well as re-enforced. Nearly all cheap "wood look" boards out there are not.
Be aware of what you are getting when you purchase a board. Cheap sometimes isn't a bargain, possibly it just has less materials in it?
Ride safe,
JB