That 5g looks a lot like my grandmother's old tank that went through several owners in the family, including me. It had a sweet little wrought iron stand, too. Wish the set was still around, I'd set it up in a heartbeat!
I have a 29 up and running right now. It has some nice Skiffia lermae in it that are breeding nicely. If I recall correctly, and it is a bit of a stretch for me, the deluxe had a better grade of non-magnetic stainless steel in the frame itself and may have had slightly thicker metal parts. Either one was far nicer looking than a modern all glass tank but they were somewhat of a maintenance problem if you used anything besides straight fresh water in them. Any traces of salt would destroy the metal frames rather quickly. The saltwater hobby adopted the all glass tanks much faster than the freshwater hobby for that reason.