Punta Alta is an ideal small city to be able to drive (to the center of) from my house in about fifteen minutes. It has five sucursales of the Cooperative Obrera supermarkets where I buy a few food items like coffee, lard, and butter, as well and some household items (cleaning supplies). It also has tons of small speciality shops and a a very nice hospital where I have received wonderful attention.
The two best aspects of Bahia Blanca are the Dia (Disco)/ Easy supermarket/store on the edge of the city which is closest to me and the airport which is to the Northeast. This means I can easily get to both locations without going to the city center. but I rarely go to either.
Bahia Blanca has some very nice neighborhoods, but they are too expensive for me and I wouldn't want to live in any of them, even if I had the money, as I prefer to live in a "zona de quintas" where I have far more privacy and peace...and I can have chickens and goats.The "chickens will be coming home to roost" (for the first time) in the very near future and the goat(s) may not be far behind.
Bahia Blanca does have several nice zonas de quintas, but the properties there are also too expensive for me and coming and going requires travel on a somewhat dangerous two lane highway that skirts the city, so I could not live in Bahia Blanca, even if I wanted to.
I would only consider living in a house in Punta Alta if and when I reach the point that can't manage everyhting here on my own or with one other prepper, if that individual shows up in the next year or two (before the SHTF and it's too late).
PS: A city likeTandil is probably more desirable to anyone who cares about cafes and restaurants, but I don't patronize either. I haven't consumed restaurant "food" since 2010 with the exception of sharing a pizza four times since then, and I've only ordered one cup of coffee in a cafe during the same time period.
The bottom line, at least for me: I would never move away from this area as I already have great friends and many contacts which I will be able to share if another prepper ever joins me here. I can't imagine starting over somewhere else, on my own, the way I did when I was only 60 years old.