I clearly remember when I bought my SNES in December of 1991. It was the first major item I got with my own money (I was 15 at the time). The system was $180 and I wanted another game to go with it. I saw Final Fantasy II in the store also -- they didn't have many games -- and recalled how much fun the first one was and so I asked for it.
Paid $70 for that.
Luckily it was well worth it!
A good friend of mine was as big on the Genesis in those days as I was with the SNES, and he told me he paid $60 for Phantasy Star II, $70 for Phantasy Star III, and $80 for Phantasy Star IV when he bought those on release day. Ouch!















