The one you see in the picture, is super durable and its not a soft top. This is the current model:
https://www.islesurfandsup.com/surf-...arbon-innegra/
I got the 8'6" one for the boat, and it has been perfect. You can also find them used on CL in beach areas or surf shops, but you don't want a full on LB that is 9-11 feet long for a boat in my opinion. At the same time, the ones that wakesurf companies make are great fun, but you don't get the full LB feel unless you have something like this.
I bought that board in 2008, and its as good as the day I bought it, I just also bought a $50 case for it to protect it. So its a bit expensive, but lasts a long time with care.