Inflatable vs non-inflatable isn't even a particularly meaningful distinction, in space. That just tells you what the station would look like if it were sitting in a warehouse on Earth.
In space, the station is filled with air, and the outside is filled with not-air. Take all the air out of the ISS and it'll stay rigid like a tin can. Take all the air out of a Bigelow station and it'll go all floppy. But who cares? If you ever get into a situation where you don't have ~1 atm inside and 0 atm outside you're screwed anyway.
In space, the station is filled with air, and the outside is filled with not-air. Take all the air out of the ISS and it'll stay rigid like a tin can. Take all the air out of a Bigelow station and it'll go all floppy. But who cares? If you ever get into a situation where you don't have ~1 atm inside and 0 atm outside you're screwed anyway.