I made the same switch (From a Class A to fifth wheel) back in the 90's.
While there are things I miss about the Class A; using the bathroom while traveling, onboard generator, automatic levelers, etc., I am still convinced the fifth wheel is best for me. The difference in costs and maintenance is the biggest consideration, but I also enjoy more room, being able to back up (which you can't do for more tha a short distance when towing a toad), being able to do most of the maintenance myself and being able to afford a much newer and higher end rig.
There is no right or wrong, only what is best for you.