As long as one is healthy enough the 5th wheel provides more bang for the buck.
However the 5'er doesn't have the same convenience factor or ease of set up.
Going to the fridge, or getting something heated in the microwave while in motion is very doable in a class A ,,,not so much in a 5'er.
The class A convenience starts to become more beneficial as we age and are RV abilities begin to erode.
A class A allows one to stay in the RV game a little longer by adding a few more gadgets and conveniences.