The replies here are very interesting to say the least.
I just went down to the local mall store and asked them many questions.
They have many different versions and the one I'm considering is a P5.
They have all the same sir chambers, pumps and controls. The big difference is the exterior and now may layers of foam pads you add tot he top.
I did notice the P5 has a much better quilting and softer material than the basic model. I still believe it is a very costly ionvestment.
The main warranty is basically 100% for the first 2 years. After that time it will cost you to get anything fixed or replaced. Still thinking about it but will conti nue to monitor this question here if it is worth it.
Let's keep this going to help others.
This is the one I'm considering from Camping World
It is a short Queen with radius corners