It depends on your exact situation and which "factor" you value the most.
My blow-up sprung a leak in a place that wouldn't hold a "patch" so I replaced it with a thin foam "matress" and I'm about ready to go back.
The blow-up occupies a MUCH smaller space when deflated; I'm having a hard time finding a good space to store the mattress. Just storing it is a MUCH bigger hassle than deflating the "balloon".
Consider all the factors before you change. And keep the old one for a while just incase you want to go back.
If I get a new one it will be 12 V or battery powered. The original was 110 V and I had to run the generator to blow up the bed. Poor design.
'07 Damon Outlaw 3611
CanAm Spyder in the "trunk"