Even on my Commodore 64 and later 128 growing up, I rarely used the cart slot for game carts. I never bought game carts, only disk games and in the USA games were rarely on cart (at least by 1985 when I got my first 64). This slot was pretty much only used as an expansion slot, which the 1000 and 500 had. I seriously doubt I would have been interested a cart slot for the Amiga.
