@Felthry That price, I think, at least in the UK, has gone up over time. Megadrive/Genesis games were around £20 at the time (90's, no idea if mid or late), but now, the cost of a game is around the £50 mark.
@jaymeskeller How has inflation been in that period, though? In terms of purchasing power, the cost may have remained more or less constant.
@jaymeskeller Doing the math (if I'm doing it right) suggests that £20 in 1995 currency would be a bit more than £25 in 2016 currency, so that would imply they've approximately doubled in real price.